NAS1921 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Blind rivet, bulbed, Monel |
| Material | Monel |
| Status | Listing data: sizes and part numbers commonly stocked. The standard or manufacturer drawing governs; check its current issue before design use. |
Dimensions by size
| Dimension, in | .125 | .156 |
|---|---|---|
| D — Diameter, as printed | .125 | .156 |
Nominal diameters as listed. Dimensions not given there are not stated here; take them from the standard.
Part numbers
Grip ranges and part numbers commonly stocked. The standard governs and may list others.
.1258 part numbers
| Part no. | Tooling | Grip min, in | Grip max, in |
|---|---|---|---|
| NAS1921M04-02 | Standard | .063 | .125 |
| NAS1921M04-03 | Standard | .126 | .187 |
| NAS1921M04-04 | Standard | .188 | .250 |
| NAS1921M04-05 | Standard | .251 | .312 |
| NAS1921M04S02 | Single action tooling | .063 | .125 |
| NAS1921M04S03 | Single action tooling | .126 | .187 |
| NAS1921M04S04 | Single action tooling | .188 | .250 |
| NAS1921M04S05 | Single action tooling | .251 | .312 |
.1568 part numbers
| Part no. | Tooling | Grip min, in | Grip max, in |
|---|---|---|---|
| NAS1921M05-02 | Standard | .080 | .125 |
| NAS1921M05-03 | Standard | .126 | .187 |
| NAS1921M05-04 | Standard | .188 | .250 |
| NAS1921M05-05 | Standard | .251 | .312 |
| NAS1921M05S02 | Single action tooling | .080 | .125 |
| NAS1921M05S03 | Single action tooling | .126 | .187 |
| NAS1921M05S04 | Single action tooling | .188 | .250 |
| NAS1921M05S05 | Single action tooling | .251 | .312 |
Part number
What each code means
| Part | Meaning |
|---|---|
| - | Tool: No S: standard tooling |
| S | Tool: Single action, non-shifting tooling |
| Example | NAS1921M04-03 — diameter .125, grip dash 03 (grip range .126-.187 in) |
Notes from the standard
- M04 = .125 diameter, M05 = .156 diameter; S after it marks a rivet for single action, non-shifting tooling. The last two digits are the grip dash.
- The listing heading names '100° flush head' for NAS1919 and NAS1921 together; its drawing shows a protruding head on NAS1921.
- Approved data governs. Use the fastener the SRM, drawing or IPC calls for.
Where to buy
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Distributors coming soon.
Sources
- NAS1921 — Blind rivet, protruding head (as drawn), bulbed, Monel, mechanically-locked spindle — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.