The Rivet,blind, cataloged under National Stock Number 5320-00-239-1289, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-239-1289 |
| Primary Part Number | GR501A4A |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Fastener Length | 0.162 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE STEM |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.078 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING SHANK W/GROOVED END FOR LOCKING |
| Surface Treatment | CHROMATE STEM |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 2024 STEM |
| Material | ALUMINUM ALLOY 5056 SLEEVE |
| Head Major Diameter | 0.207 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| 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 |
|---|---|
| GR501A4A | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 100V4A | 5/9 Secondary reference Huck Mfg Co |
| AF460-4-6 | 5/2 Secondary reference U.S. Government activity |
| CKLX100V4A | 3/9 Design control — primary reference Huck Mfg Co |
| X100V4A | 5/9 Secondary reference Huck Mfg Co |
| AFS460-4-6 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-00-239-1289 is a Rivet,blind, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-239-1289 has 1 manufacturer part number on file: GR501A4A (Northrop Grumman Systems Corporation).
Key specifications for GR501A4A: Shank Diameter: 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN; Fastener Length: 0.162 INCHES MINIMUM AND 0.182 INCHES MAXIMUM IN; Expansion Device: SERRATED STEM-TYPE W; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE STEM. 12 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.