The Strap,retaining, cataloged under National Stock Number 5340-01-689-1663, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-689-1663 |
| Primary Part Number | NAS1716C31NX |
| Item Name | Strap,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Umpco, Inc. Dba Umpco Inc |
| Status | ACTIVE |
| Mounting Hole Size | 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN |
| Distance Between Mounting Hole Centers | 2.727 INCHES NOMINAL IN |
| Mounting Pad | INCLUDED |
| Style Designator | SADDLE ARCH |
| Material Document and Classification | AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE CUSHIONING |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Cushion | NOT INCLUDED |
| Specification/standard Data | 80205-NAS1716 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Distance Between Base and Inside of Arch | 2.062 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 LOCATION NOT OTHERWISE SPECIFIED |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE CUSHIONING |
| Inside Diameter/arch Length | 1.933 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 |
|---|---|
| NAS1716C31NX PRIMARY | Umpco, Inc. Dba Umpco Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1716C31NX | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-689-1663 is a Strap,retaining, manufactured by Umpco, Inc. Dba Umpco Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-689-1663 has 1 manufacturer part number on file: NAS1716C31NX (Umpco, Inc. Dba Umpco Inc).
Key specifications for NAS1716C31NX: Mounting Hole Size: 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN; Distance Between Mounting Hole Centers: 2.727 INCHES NOMINAL IN; Mounting Pad: INCLUDED; Style Designator: SADDLE ARCH. 13 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.