The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-338-6923, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-338-6923 |
| Primary Part Number | HST79CY-12 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 0.382 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN |
| Collar Overall Height | 0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN |
| Heat Treatment | T-73 SOLUTION HEAT TREATED OVERALL |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | ALUMINUM ALLOY 7075 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 |
|---|---|
| HST79CY-12 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HST79CY-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HST79CY-12 | Hi-Shear Corporation (USA) |
| BACC30BL12 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| Reference | Meaning |
|---|---|
| HST79CY-12 | 5/9 Secondary reference U.S. Government activity |
| BACC30BL12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-338-6923 is a Collar,pin-Rivet, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-338-6923 has 4 manufacturer part numbers on file: HST79CY-12 (Sps Technologies, Llc Dba PB Fasteners), HST79CY-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HST79CY-12 (Hi-Shear Corporation), BACC30BL12 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-669-4086. Verify interchangeability with system specifications before substitution.
Key specifications for HST79CY-12: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Surface Treatment Document and Classification: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Collar Inside Diameter: 0.382 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN; Collar Overall Height: 0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. 15 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.