The Fastener Assembly,turnlock, cataloged under National Stock Number 5325-01-257-6996, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Huck International, Inc. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-257-6996 |
| Primary Part Number | FE7500-8-B-4 |
| Item Name | Fastener Assembly,turnlock |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Material | STEEL COMP 301 WASHER |
| Surface Treatment | ANODIZE HEAD |
| Material Document and Classification | ASTM-A-493-63 ASSN STD SINGLE MATERIAL RESPONSE STUD |
| Material Document and Classification | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD |
| Material Document and Classification | QQ-W-225/8 FED SPEC SINGLE MATERIAL RESPONSE RECEPTACLE |
| Material | ALUMINUM ALLOY 6061 HEAD |
| Mounting Style | FLOATING NUT |
| Material | STEEL COMP 302 STUD |
| Surface Treatment | OXIDE FILM STUD |
| Material | ALUMINUM ALLOY 6061 RECEPTACLE |
| Surface Treatment | PASSIVATE LOCKSPRING |
| Surface Treatment | OXIDE FILM WASHER |
| Surface Treatment | ANODIZE RECEPTACLE |
| Material | STEEL COMP 302 LOCKSPRING |
| Grip Length | 0.337 INCHES NOMINAL IN |
| Drive Type | SLOTTED |
| Diameter | 0.420 INCHES NOMINAL IN |
| Stud Head Height | 0.290 INCHES NOMINAL IN |
| Turnlock Stud Head Style | KNURLED |
| Turnlock Receptacle Style | FLOATING |
| Stud Thread Size and Series/type Designator | 0.164-32 UNIFIED NATIONAL COARSE (UNC) |
| Extension Length | 0.283 INCHES NOMINAL IN |
| Stud Shank Major Diameter | 0.258 INCHES NOMINAL IN |
| Material Document and Classification | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE LOCKSPRING |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Accommodated Thickness | 0.032 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| Minor Diameter | 0.215 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FE7500-8-B-4 | Huck Intl Inc (USA) |
| FE7500-8-B-4 PRIMARY | Huck International, Inc (USA) |
| S-290 | Huck Intl Inc (USA) |
NSN 5325-01-257-6996 is a Fastener Assembly,turnlock, manufactured by Huck International, Inc, classified under FSC 5325 (No Item Name Available). Status: active.
NSN 5325-01-257-6996 has 3 cross-referenced part numbers: FE7500-8-B-4 (Huck Intl Inc), FE7500-8-B-4 (Huck International, Inc), S-290 (Huck Intl Inc).
There are 4 known substitutes for 5325-01-257-6996: 5310-00-265-9217, 3220-01-142-2427, 3460-01-353-8109 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for FE7500-8-B-4: Material: STEEL COMP 301 WASHER; Surface Treatment: ANODIZE HEAD; Material Document and Classification: ASTM-A-493-63 ASSN STD SINGLE MATERIAL RESPONSE STUD; Material Document and Classification: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD. 27 total characteristics are documented in the Federal Logistics Information System.