ASNA303 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Blind bolt, titanium, for composite structure |
| Material | Titanium (the material letter S is printed without a meaning) |
| Locking | Radial-Lok-type titanium blind bolt |
| Finish | Not stated in the standard data |
| Status | Reference data transcribed from the standard, units marked row by row. Check the issue of the standard in force before design use. |
Dimensions by size
| Dimension, inch first (mm after) | -05 | -06 | -08 |
|---|---|---|---|
| Nominal Ø (code) | 5/32 in | 3/16 in | 1/4 in |
| Fastener Ø † | 0.1645 in (4.178 mm†) | 0.1985 in (5.041 mm†) | 0.2595 in (6.591 mm†) |
| Hole † | 0.165–0.168 in (4.191–4.267 mm†) | 0.199–0.202 in (5.054–5.130 mm†) | 0.260–0.263 in (6.604–6.680 mm†) |
| Drill (chart) | #19 (0.1660 in; 4.22 mm) | #7 (0.2010 in; 5.11 mm) | G (0.2610 in; 6.63 mm) |
Units: no mark = printed in mm and stated by the standard. † = printed with no unit; the inch value is our conversion, reading the figure as mm. Nominal Ø is our reading of the inch code (1/32 in for diameters, 1/16 in for grips). Drill: from the site drill chart, inside the hole range.
Part numbers
Part numbers by diameter and grip code. The inch grip ranges are our conversion; the mm the standard prints carry no unit.
-05 · 5/32 in nominal10 part numbers
| Part no. | Grip, in (mm converted) |
|---|---|
| ASNA303S05100 | 0.050–0.125 (1.27–3.18) |
| ASNA303S05200 | 0.125–0.225 (3.18–5.72) |
| ASNA303S05300 | 0.225–0.325 (5.72–8.26) |
| ASNA303S05400 | 0.325–0.425 (8.26–10.80) |
| ASNA303S05500 | 0.425–0.525 (10.80–13.34) |
| ASNA303S05600 | 0.525–0.625 (13.34–15.88) |
| ASNA303S05700 | 0.625–0.725 (15.88–18.42) |
| ASNA303S05800 | 0.725–0.825 (18.42–20.96) |
| ASNA303S05900 | 0.826–0.925 (20.97–23.50) |
| ASNA303S051000 | 0.925–1.025 (23.50–26.04) |
-06 · 3/16 in nominal10 part numbers
| Part no. | Grip, in (mm converted) |
|---|---|
| ASNA303S06100 | 0.050–0.125 (1.27–3.18) |
| ASNA303S06200 | 0.125–0.225 (3.18–5.72) |
| ASNA303S06300 | 0.225–0.325 (5.72–8.26) |
| ASNA303S06400 | 0.325–0.425 (8.26–10.80) |
| ASNA303S06500 | 0.425–0.525 (10.80–13.34) |
| ASNA303S06600 | 0.525–0.625 (13.34–15.88) |
| ASNA303S06700 | 0.625–0.725 (15.88–18.42) |
| ASNA303S06800 | 0.725–0.825 (18.42–20.96) |
| ASNA303S06900 | 0.826–0.925 (20.97–23.50) |
| ASNA303S061000 | 0.925–1.025 (23.50–26.04) |
-08 · 1/4 in nominal10 part numbers
| Part no. | Grip, in (mm converted) |
|---|---|
| ASNA303S08100 | 0.050–0.125 (1.27–3.18) |
| ASNA303S08200 | 0.125–0.225 (3.18–5.72) |
| ASNA303S08300 | 0.225–0.325 (5.72–8.26) |
| ASNA303S08400 | 0.325–0.425 (8.26–10.80) |
| ASNA303S08500 | 0.425–0.525 (10.80–13.34) |
| ASNA303S08600 | 0.525–0.625 (13.34–15.88) |
| ASNA303S08700 | 0.625–0.725 (15.88–18.42) |
| ASNA303S08800 | 0.725–0.825 (18.42–20.96) |
| ASNA303S08900 | 0.826–0.925 (20.97–23.50) |
| ASNA303S081000 | 0.925–1.025 (23.50–26.04) |
Part number
How to read it
| Segment | Reads as ASNA303S08100 |
|---|---|
| ASNA303 Standard | Radial-Lok type titanium blind bolt. Head: protruding.Unit of the code: None: the number of the standardFrom: The standard |
| S Material | Material code S, printed without a meaning in the standardUnit of the code: Letter, no unitFrom: Letter printed by the standard; its meaning is not printed |
| 08 Diameter | 1/4 in nominal, worked out from the fastener and hole figures; fastener diameter 0.260 in · 6.591 mm (read as mm); hole 0.260–0.263 in · 6.604–6.68 mm (read as mm).Unit of the code: 1/32 in by its nominal, worked out from the fastener and hole figures (our reading)From: Fastener-diameter and hole table (Dimensions by size, above) |
| 100 Grip | Code − 0.075 to code + 0.025 in: 0.050–0.125 in (first code 100: 0.050–0.125 in); stack 0.050–0.125 in · 1.27–3.18 mm (read as mm).Unit of the code: Thousandths of an inch: code − 0.075 to code + 0.025 in, 0.100 in steps (first code 100: 0.050–0.125 in) (our inference: the standard prints no unit)From: Grip table (Part numbers, above) |
Worked example. ASNA303S08100 reads: ASNA303 Radial-Lok-type titanium blind bolt for composite structure, protruding · S meaning not printed · 08 1/4 in, hole 6.604–6.68 mm, drill G · 100 0.050–0.125 in, stack 1.27–3.18 mm.
From a measured hole or stack to the code
- Hole to diameter code. Measure the hole and take the code whose hole range holds it, never the nominal: 05 → 4.191–4.267 · 06 → 5.054–5.13 · 08 → 6.604–6.68 mm.
- Stack to grip code. Measure the total thickness to be joined with a grip gauge and take the code whose range holds it, for that diameter: a 2.20 mm stack with diameter 08 → grip 100 (1.27–3.18 mm).
- Grip code from inches. Code N (thousandths in) covers (N-75) to (N+25) thousandths of an inch, 0.100 in steps; first code 100 = 0.050-0.125 in. Inference from computed values; units not stated.
If a segment is missing
- Without the standard number the codes cannot be read: grip code 04 is 4.78–6.35 mm on ASNA0077/0078, 5.56–7.16 mm on ASNA0026/0027, 5.59–7.14 mm on ASNA0081/0082.
- No material letter: the number is incomplete; S is the only letter printed, and its meaning is not given by the standard.
- No diameter or grip code: the number names the family only, not a part; a default size is not given by the standard.
- No grip code: the number is incomplete; a default grip is not given by the standard.
What each code means
| Part | Meaning |
|---|---|
| Format | ASNA303<material><dash> |
| S | Material: Material code S, printed without a meaning in the standard |
| Example | ASNA303S08100 — Material S, diameter code 08 (1/4 in nominal), grip code 100 (0.050–0.125 in; 1.27–3.18 mm). Grip rule: code N covers N−75 to N+25 thousandths of an inch; 100 = 0.050–0.125 in |
Tools
| Tool | Use |
|---|---|
| MP550RL | pneumatic pistol-grip installation tool |
| MRT300 | pneumatic 90° tool for restricted access |
Inspection
| Head | Check |
|---|---|
| 100° countersunk | Cylindrical double-ended gauge with ends marked H and L; the break is accepted between them |
| Protruding | Flat plate (fork) gauge resting on the structure each side of the head |
Gauge limits are not published here: the standard prints them with no unit and the readings disagree between diameters.
Notes from the standard
- Part number: ASNA303 + material code + two-digit diameter code (05, 06, 08) + grip code of three or four digits. The rows show code S.
- Grip code: code N covers N−75 to N+25 thousandths of an inch. Our reading, drawn from the computed ranges: the standard prints values like these with no unit. Inch is the origin of the ranges.
- The mm hole values equal the inch sizes exactly (0.165 in = 4.191 mm), so the inch figures are probably the origin; no unit is printed.
- Units: no mark = printed in mm and stated by the standard. † = printed with no unit; the inch value is our conversion, reading the figure as mm. Nominal Ø is our reading of the inch code (1/32 in for diameters, 1/16 in for grips). Drill: from the site drill chart, inside the hole range.
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Sources
- ASNA303 standard (ASNA series) — Codes, tables, tooling and inspection limits transcribed into the reference data of The Aviation Point. The text of the standard is not reproduced. Check the issue in force before design use.
- US federal item records (NSN) and distributor listings — Partner numbers. The evidence is named on each cross line: federal NSN record, manufacturer catalogue, or distributor listing (alternate, not identical).
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.