The Nut,sleeve, cataloged under National Stock Number 5310-01-196-4139, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Qioptiq Ltd. Government technical data includes 7 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-196-4139 |
| Primary Part Number | 031574 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Qioptiq Ltd |
| Status | ACTIVE |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-764B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Cross-Sectional Shape | ROUND FLANGE |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| 031574 PRIMARY | Qioptiq Ltd (GBR) |
NSN 5310-01-196-4139 is a Nut,sleeve, manufactured by Qioptiq Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-196-4139 has 1 manufacturer part number on file: 031574 (Qioptiq Ltd).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-513-5938. Verify interchangeability with system specifications before substitution.
Key specifications for 031574: Thread Series: UNF; Material Document and Classification: QQ-S-764B FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.250 INCHES IN. 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.