The Clamp,loop, cataloged under National Stock Number 5340-01-557-9259, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Voss Industries, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-557-9259 |
| Primary Part Number | T4261H-638-SL |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Voss Industries, Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SAE J-200BC 715 C12 C20 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE CUSHION |
| Style Designator | T-BOLT |
| Material Document and Classification | MIL-S-5059 MIL STD SINGLE MATERIAL RESPONSE BAND |
| Material Thickness | 0.250 INCHES NOMINAL IN |
| Surface Treatment | SILVER NUT |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM CUSHION |
| Loop Inside Diameter | 6.540 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 12421379-015 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| T4261H-638-SL PRIMARY | Voss Industries, Llc (USA) |
| 12421379-015 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12421379-015 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12421379 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 12421379-015 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Defense Llc |
| 89225-0625-810W | 5/9 Secondary reference Continental Tire the Americas, Llc Dba Continental Tires |
| 89225-0625-810W | 5/9 Secondary reference Aerojet-General Corp Aetron Div |
NSN 5340-01-557-9259 is a Clamp,loop, manufactured by Voss Industries, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-557-9259 has 3 manufacturer part numbers on file: 12421379-015 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), T4261H-638-SL (Voss Industries, Llc), 12421379-015 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-644-1027. Verify interchangeability with system specifications before substitution.
Key specifications for T4261H-638-SL: Surface Treatment Document and Classification: SAE J-200BC 715 C12 C20 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE CUSHION; Style Designator: T-BOLT; Material Document and Classification: MIL-S-5059 MIL STD SINGLE MATERIAL RESPONSE BAND; Overall Width: 0.750 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.