The Washer,saddle, cataloged under National Stock Number 5310-00-780-0691, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-780-0691 |
| Primary Part Number | 8632840 |
| Item Name | Washer,saddle |
| 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 |
| Radius | 0.281 INCHES NOMINAL IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Style Designator | SADDLE |
| Material Document and Classification | ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL COMP 1095 OVERALL |
| Hole Diameter | 0.175 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 |
|---|---|
| 8632840 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 8632840 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| G310860-1 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| MC18941 | 3/9 Design control — primary reference Metal Craft Inc |
| G395827-1 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
NSN 5310-00-780-0691 is a Washer,saddle, 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 5310-00-780-0691 has 2 manufacturer part numbers on file: 8632840 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 8632840 (Us Army Aviation and Missile Command).
Key specifications for 8632840: Overall Height: 0.250 INCHES NOMINAL IN; Radius: 0.281 INCHES NOMINAL IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Style Designator: SADDLE. 7 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.