The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-706-0785, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-706-0785 |
| Primary Part Number | 21FA420 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | CANCELLED |
| Width Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Thread Size | 0.250 INCHES IN |
| Bearing Surface Type | CHAMFERED |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Quantity Per Inch | 20 |
| Nut Height | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2B |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21FA420 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 5310PL0625588 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 220100-16 | Kearfott Corporation Div Guidance and Navigation Division (USA) |
| 149520007 | D & J Parts Inc (USA) |
NSN 5310-00-706-0785 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-706-0785 has 4 cross-referenced part numbers: 21FA420 (Sps Technologies, Llc Dba PB Fasteners), 5310PL0625588 (Jednolity Indeks Materialowy - Uniform Material Index), 220100-16 (Kearfott Corporation Div Guidance and Navigation Division), 149520007 (D & J Parts Inc).
There are 2 known substitutes for 5310-00-706-0785: 5310-00-575-5628, 4730-01-619-0510. Verify interchangeability with system specifications before substitution.
Key specifications for 21FA420: Width Across Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Thread Size: 0.250 INCHES IN; Bearing Surface Type: CHAMFERED. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-706-0785 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.