The Washer,recessed, cataloged under National Stock Number 5310-01-034-6644, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. Government technical data includes 8 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. 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 | 5310-01-034-6644 |
| Primary Part Number | 11625-6 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Gorman-Rupp Company Div Gorman-Rupp |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-C-390,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Material Thickness | 0.104 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN |
| Recess Diameter | 0.484 INCHES NOMINAL IN |
| Material | COPPER ALLOY 836 OVERALL |
| Hole Diameter | 0.453 INCHES NOMINAL IN |
| Recess Angle | 90.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 11625-6 PRIMARY | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
NSN 5310-01-034-6644 is a Washer,recessed, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-034-6644 has 1 manufacturer part number on file: 11625-6 (The Gorman-Rupp Company Div Gorman-Rupp).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-193-7092, 5905-01-345-0976. Verify interchangeability with system specifications before substitution.
Key specifications for 11625-6: Style Designator: RECESSED; Material Document and Classification: QQ-C-390,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.875 INCHES NOMINAL IN; Material Thickness: 0.104 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN. 8 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.