The Clamp,loop, cataloged under National Stock Number 5340-01-236-1951, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Umpco, Inc. Dba Umpco Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-236-1951 |
| Primary Part Number | S280SS13 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Style Designator | OFFSET MOUNT |
| Material Document and Classification | MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES BAND |
| Diameter | 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Material Thickness | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 1.021 INCHES NOMINAL IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.803 INCHES NOMINAL IN |
| Material | STEEL COMP 301 OR STEEL COMP 302 BAND |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE CUSHION |
| Loop Inside Diameter | 0.812 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 |
|---|---|
| S280SS13 | Umpco, Inc. Dba Umpco Inc (USA) |
| JM44LC9SH13T | J & M Products, Inc (USA) |
| Reference | Meaning |
|---|---|
| TA11C44XC13T | 5/2 Secondary reference U.S. Government activity |
| C2874C13 | 7/2 Vendor item drawing reference U.S. Government activity |
| 477SS13 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-236-1951 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-236-1951 has 2 manufacturer part numbers on file: S280SS13 (Umpco, Inc. Dba Umpco Inc), JM44LC9SH13T (J & M Products, Inc).
Key specifications for S280SS13: Style Designator: OFFSET MOUNT; Material Document and Classification: MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES BAND; Diameter: 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN; Overall Width: 0.500 INCHES NOMINAL IN. 10 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.