The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-696-9105, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fatigue Technology, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-696-9105 |
| Primary Part Number | FTLSRC-1944-0-A-.210-S |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fatigue Technology, Inc |
| Status | ACTIVE |
| Width Across Flats | 0.650 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2700 METHOD 1 OR ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5659, CONDITION H1025 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Diameter | 0.775 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | ROUND |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| FTLSRC-1944-0-A-.210-S PRIMARY | Fatigue Technology, Inc (USA) |
| Reference | Meaning |
|---|---|
| C21131-4A210 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5310-01-696-9105 is a Nut,self-Locking,round, manufactured by Fatigue Technology, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-696-9105 has 1 manufacturer part number on file: FTLSRC-1944-0-A-.210-S (Fatigue Technology, Inc).
Key specifications for FTLSRC-1944-0-A-.210-S: Width Across Flats: 0.650 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS2700 METHOD 1 OR ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS5659, CONDITION H1025 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL; Nut Diameter: 0.775 INCHES MAXIMUM 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.