The Washer,recessed, cataloged under National Stock Number 5310-01-100-0634, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-100-0634 |
| Primary Part Number | 11746949-2 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Top Recess Diameter | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Bottom Recess Diameter | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Top Recess Angle | 45.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS 5643 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Material Thickness | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Bottom Recess Angle | 45.0 DEGREES NOMINAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.251 INCHES MINIMUM AND 0.258 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 |
|---|---|
| 11746949-2 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5310-01-100-0634 is a Washer,recessed, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-100-0634 has 1 manufacturer part number on file: 11746949-2 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 11746949-2: Top Recess Diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Bottom Recess Diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Top Recess Angle: 45.0 DEGREES NOMINAL; Style Designator: RECESSED BOTH SIDES. 10 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.