The Strap,retaining, cataloged under National Stock Number 5340-01-656-4835, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-656-4835 |
| Primary Part Number | S218D72P |
| Item Name | Strap,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Mounting Hole Size | 0.204 INCHES NOMINAL IN |
| Distance Between Mounting Hole Centers | 5.57 INCHES NOMINAL IN |
| Arch Quantity | 1 |
| Style Designator | SADDLE ARCH |
| Material Document and Classification | UMP-MT-ALU-001 MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Material Thickness | 0.064 INCHES NOMINAL IN |
| Cushion | INCLUDED |
| Material | ALUMINUM ALLOY 2024 LOCATION NOT OTHERWISE SPECIFIED |
| Material | PLASTIC PHENOLIC CUSHIONING |
| Inside Diameter/arch Length | 4.50 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 |
|---|---|
| S218D72P PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
NSN 5340-01-656-4835 is a Strap,retaining, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-656-4835 has 1 manufacturer part number on file: S218D72P (Umpco, Inc. Dba Umpco Inc).
Key specifications for S218D72P: Mounting Hole Size: 0.204 INCHES NOMINAL IN; Distance Between Mounting Hole Centers: 5.57 INCHES NOMINAL IN; Arch Quantity: 1; Style Designator: SADDLE ARCH. 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.