The Washer,concave, cataloged under National Stock Number 5310-01-289-6933, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-289-6933 |
| Primary Part Number | HL382-12PBW |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Radius | 0.375 INCHES NOMINAL IN |
| Style Designator | CONCAVE |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5520 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.705 INCHES MINIMUM AND 0.716 INCHES MAXIMUM IN |
| Material Thickness | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 OVERALL |
| Hole Diameter | 0.416 INCHES NOMINAL 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 |
|---|---|
| HL382-12PBW | Satair A/s (DNK) |
| HL382-12PBW PRIMARY | Hi-Shear Corporation (USA) |
| HL382-12PBW PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL382-12PBW | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
NSN 5310-01-289-6933 is a Washer,concave, manufactured by Hi-Shear Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-289-6933 has 4 manufacturer part numbers on file: HL382-12PBW (Satair A/s), HL382-12PBW (Hi-Shear Corporation), HL382-12PBW (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL382-12PBW (Fairchild Fasteners Europe - Vsd Gmbh).
Key specifications for HL382-12PBW: Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Radius: 0.375 INCHES NOMINAL IN; Style Designator: CONCAVE; Material Document and Classification: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5528 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5520 ASSN STD 3RD MATERIAL RESPONSE OVERALL. 9 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.