The Nut,plain,cap, cataloged under National Stock Number 5310-01-077-9405, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Babcock & Wilcox Co. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-077-9405 |
| Primary Part Number | 1770F-3PC372 |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-763,18-8 ALLOY,GR A,CL 7 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.500 INCHES IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 1772F-PC372 | Babcock & Wilcox Co (USA) |
| 1770F-3PC372 PRIMARY | Babcock & Wilcox Co (USA) |
NSN 5310-01-077-9405 is a Nut,plain,cap, manufactured by Babcock & Wilcox Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-077-9405 has 2 manufacturer part numbers on file: 1772F-PC372 (Babcock & Wilcox Co), 1770F-3PC372 (Babcock & Wilcox Co).
Key specifications for 1770F-3PC372: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-763,18-8 ALLOY,GR A,CL 7 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Size: 0.500 INCHES IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 6 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.