The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-176-6525, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-176-6525 |
| Primary Part Number | 10938444-1 |
| Item Name | Nut,plain,single Ball Seat,hexag |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 1.475 INCHES MINIMUM AND 1.495 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM |
| Thread Pitch Diameters | +1.0829 TO 1.0899 INCHES IN |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OR QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Features Provided | CASEHARDENED |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 1.125 INCHES IN |
| Nut Height | 0.875 INCHES NOMINAL IN |
| Ball Seat Radius | 0.875 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 1211 OR STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1119 OR STEEL COMP 1120 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 |
|---|---|
| 10938444-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 1199M117C | Meritor Industrial Products, Llc (USA) |
| 1199M117C | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 5310001766525 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5310001766525 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5310-00-176-6525 is a Nut,plain,single Ball Seat,hexag, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-176-6525 has 3 manufacturer part numbers on file: 10938444-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 1199M117C (Meritor Industrial Products, Llc), 1199M117C (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 10938444-1: Width Across Flats: 1.475 INCHES MINIMUM AND 1.495 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UN; Hardness Rating: 57.0 ROCKWELL C MINIMUM. 15 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.