The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-718-6441, 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 17 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-718-6441 |
| Primary Part Number | HL375DU-6AW |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | SOLID FILM |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 1, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| Collar Inside Diameter | 0.290 INCHES NOMINAL IN |
| Collar Overall Height | 0.465 INCHES NOMINAL IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.390 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5643 OR AMS 5528 OR AMS 5520 NATIONAL SPEC SINGLE MATERIAL RESPONSE WASHER |
| Material Document and Classification | ASTM A582 OR AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE COLLAR |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 73197-HL375 MANUFACTURERS SPECIFICATION |
| Surface Treatment | CADMIUM WASHER |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 WASHER |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X COLLAR |
| 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 |
|---|---|
| HL375DU-6AW | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL375DU-6AW PRIMARY | Hi-Shear Corporation (USA) |
| HL375DU-6AW | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL375DU-6AW | Huck International, Inc (USA) |
| HL375DU-6AW | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HL375 | D/9 Drawing number reference only Hi-Shear Corporation |
| HL375DU-6AW | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-718-6441 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-718-6441 has 5 manufacturer part numbers on file: HL375DU-6AW (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL375DU-6AW (Hi-Shear Corporation), HL375DU-6AW (Sps Technologies, Llc Dba PB Fasteners), HL375DU-6AW (Huck International, Inc), HL375DU-6AW (West Coast Aerospace, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5320-01-719-6586, 5320-01-733-6806. Verify interchangeability with system specifications before substitution.
Key specifications for HL375DU-6AW: Lubrication: SOLID FILM; Surface Treatment Document and Classification: QQ-P-416, TYPE 1, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE WASHER; Collar Inside Diameter: 0.290 INCHES NOMINAL IN; Collar Overall Height: 0.465 INCHES NOMINAL IN. 17 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.