The Clamp,loop, cataloged under National Stock Number 5340-01-257-6178, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-257-6178 |
| Primary Part Number | 521-8-8 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — No Item Name Available |
| Manufacturer | Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins |
| Status | ACTIVE |
| Distance From Loop Center to Tongue End | 1.260 INCHES NOMINAL IN |
| Cushioning Environmental Protection | CORROSION RESISTANT AND WEATHER RESISTANT AND OIL RESISTANT |
| Loop Length | 1.000 INCHES NOMINAL IN |
| Center to Center Distance Between Loop and Mounting Hole | 0.980 INCHES NOMINAL IN |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE BAND |
| Material Document and Classification | AMS 3303 ASSN STD SINGLE MATERIAL RESPONSE CUSHION |
| Style Designator | MULTIPLE LOOP |
| Material | RUBBER SILICONE CLASS Q CUSHION |
| Material | STEEL COMP 1010 BAND |
| Loop Width | 0.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE BAND |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Tongue Hole Type | ROUND, UNTHREADED |
| Diameter | 0.266 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
NSN 5340-01-257-6178 is a Clamp,loop, manufactured by Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins, classified under FSC 5340 (No Item Name Available). Status: active.
NSN 5340-01-257-6178 has 2 cross-referenced part numbers: 521-8-8 (Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins), 30-233-1 (Bell Textron Inc).
There are 6 known substitutes for 5340-01-257-6178: 5905-00-104-8334, 5306-00-275-1659, 5360-00-521-1387 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 521-8-8: Distance From Loop Center to Tongue End: 1.260 INCHES NOMINAL IN; Special Features: CONSISTS OF LATCH AND SPRING,LATCH PIVOT,RING AND RIVETS; Cushioning Environmental Protection: CORROSION RESISTANT AND WEATHER RESISTANT AND OIL RESISTANT; Loop Length: 1.000 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.