NSN 5340-01-677-8739 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-677-8739. Manufacturer of record part number: S228SSG12.
The Clamp,loop, cataloged under National Stock Number 5340-01-677-8739, 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. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-01-677-8739
Primary Part Number
S228SSG12
Item Name
Clamp,loop
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Umpco, Inc. Dba Umpco Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068
COVER,ACCESS
5340-00-000-0132
SEAT,HELICAL COMPRESSION SPRING
5340-00-000-8150
5340-00-000-8150 · Item name not on file
5340-00-001-1251
5340-00-001-1251 · Item name not on file
5340-00-001-1264
STRAP,WEBBING
5340-00-001-1265
STRAP,WEBBING
5340-00-001-1266
STRAP,WEBBING
5340-00-001-1275
HANDLE,DOOR
Frequently Asked Questions
What is NSN 5340-01-677-8739?
NSN 5340-01-677-8739 is a Clamp,loop, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-677-8739?
NSN 5340-01-677-8739 has 3 manufacturer part numbers on file: AL4010256 (General Dynamics Ordnance and Tactical Systems, Inc.), AL4010256 (Flyer Defense, Llc), S228SSG12 (Umpco, Inc. Dba Umpco Inc).
What are the specifications of S228SSG12?
Key specifications for S228SSG12: Part Name Assigned by Controlling Agency: CLAMP,LOOP; End Item Identification: 2355-01-627-5147. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-677-8739 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.