The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-271-2537, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-271-2537 |
| Primary Part Number | HLM70-04 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Thread Tolerance Class | 4H INTERNAL AND 5H INTERNAL |
| Identification Code Color | RED |
| Surface Treatment Document and Classification | HI-SHEAR SPEC 305 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Collar Inside Diameter | 4.1 MILLIMETERS MINIMUM AND 4.2 MILLIMETERS MAXIMUM MM |
| Collar Overall Height | 11.2 MILLIMETERS MINIMUM AND 11.8 MILLIMETERS MAXIMUM MM |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Thread Pitch in Millimeters | 0.70 |
| Collar Outside Diameter | 7.2 MILLIMETERS MINIMUM AND 7.4 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Specification/standard Data | 73197-HL-70 MANUFACTURERS STANDARD |
| Surface Treatment | ANODIZE COLLAR |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | ISO S |
| 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 |
|---|---|
| HLM70-04 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLM70-04 PRIMARY | Hi-Shear Corporation (USA) |
| HLM70-04 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLM70-04 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HLM70-04 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| HLM70-04 | 5/2 Secondary reference U.S. Government activity |
| HLM70-04 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-271-2537 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-271-2537 has 5 manufacturer part numbers on file: HLM70-04 (Sps Technologies, Llc Dba PB Fasteners), HLM70-04 (Hi-Shear Corporation), HLM70-04 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HLM70-04 (Fairchild Fasteners Europe - Vsd Gmbh), HLM70-04 (Satair A/s).
Key specifications for HLM70-04: Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Thread Tolerance Class: 4H INTERNAL AND 5H INTERNAL; Identification Code Color: RED; Surface Treatment Document and Classification: HI-SHEAR SPEC 305 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 16 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.