The Nut,plain,cap, cataloged under National Stock Number 5310-01-144-0993, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Frederick Custom Machining Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-144-0993 |
| Primary Part Number | 29991-D ITEM 46 |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Frederick Custom Machining Inc |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALLQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nut Style | CAPCAP |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 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 |
|---|---|
| 29991-D ITEM 46 PRIMARY | Frederick Custom Machining Inc (USA) |
| Reference | Meaning |
|---|---|
| 46-CG | 5/9 Secondary reference Frederick Custom Machining Inc |
NSN 5310-01-144-0993 is a Nut,plain,cap, manufactured by Frederick Custom Machining Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-144-0993 has 1 manufacturer part number on file: 29991-D ITEM 46 (Frederick Custom Machining Inc).
Key specifications for 29991-D ITEM 46: Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALLQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL; Nut Style: CAPCAP; Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL. 3 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.