The Clamp,loop, cataloged under National Stock Number 5340-00-178-1356, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Smiths Tubular Systems-Laconia, Inc.. Government technical data includes 8 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-178-1356 |
| Primary Part Number | 554213 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Smiths Tubular Systems-Laconia, Inc. |
| Status | ACTIVE |
| Style Designator | SINGLE LOOP |
| Diameter | 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Material Thickness | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Distance From Loop Center to Tongue End | 0.768 INCHES MINIMUM AND 0.788 INCHES MAXIMUM IN |
| Tongue Hole Type | ROUND, UNTHREADED |
| Center to Center Distance Between Loop and Mounting Hole | 0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Loop Inside Diameter | 0.312 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 |
NSN 5340-00-178-1356 is a Clamp,loop, manufactured by Smiths Tubular Systems-Laconia, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-178-1356 has 2 manufacturer part numbers on file: 554213 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 554213 (Smiths Tubular Systems-Laconia, Inc.).
Key specifications for 554213: Style Designator: SINGLE LOOP; Diameter: 0.199 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN; Overall Width: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN; Material Thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN. 8 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.