The Collar,pin-Rivet, cataloged under National Stock Number 5320-00-291-5407, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-291-5407 |
| Primary Part Number | HL776-8A |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 0.289 INCHES NOMINAL IN |
| Collar Overall Height | 0.495 INCHES NOMINAL IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Precious Material | SILVER |
| Collar Outside Diameter | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Surface Treatment | SILVER OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HL776-8A PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL776-8A | 5/9 Secondary reference U.S. Government activity |
| HL776-8A | 5/9 Secondary reference Sps Technologies Inc |
| HL776-8A | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5320-00-291-5407 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-291-5407 has 1 manufacturer part number on file: HL776-8A (Hi-Shear Corporation).
Key specifications for HL776-8A: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Collar Inside Diameter: 0.289 INCHES NOMINAL IN; Collar Overall Height: 0.495 INCHES NOMINAL IN. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.