The Nut,shank, cataloged under National Stock Number 5310-01-139-7151, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-139-7151 |
| Primary Part Number | L12232-7-4 |
| Item Name | Nut,shank |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL AMS5737,0.250-28 UNJF-3B INTERNAL THD,0.468 IN. MIN,0.480 IN. MAX W 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 |
|---|---|
| L12232-7-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| K50515-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 10159709 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3027T65P01 | 5/2 Secondary reference U.S. Government activity |
| 3027T65P03 | 1/2 Source control — Government-approved source U.S. Government activity |
| L12232-7-4 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-139-7151 is a Nut,shank, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-139-7151 has 2 manufacturer part numbers on file: L12232-7-4 (Sps Technologies, Llc Dba PB Fasteners), K50515-4 (Howmet Global Fastening Systems Inc).
Key specifications for L12232-7-4: General Characteristics Item Description: STEEL AMS5737,0.250-28 UNJF-3B INTERNAL THD,0.468 IN. MIN,0.480 IN. MAX W IN; End Item Identification: F104 JET ENGINE. 1 specification is 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.