The Bumper, cataloged under National Stock Number 5340-01-249-8877, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Gmt International Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-249-8877 |
| Primary Part Number | 20X12DA-GE |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Gmt International Corp |
| Status | ACTIVE |
| Outside/top Flange Diameter | 0.750 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN |
| Shank Length | 0.570 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Style Designator | FLAT RECESSED TOP THREADED STUD |
| Material Document and Classification | ASTM A576, GRADE 1008, 1010, 1015, 1016, 1018, 1020, 1022, 1025 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-R-6855, CLASS 1, GRADE 50 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM A108, GRADE 1030 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Size | 0.250-20 |
| Material | STEEL OR RUBBER |
| 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 |
|---|---|
| 20X12DA-GE PRIMARY | Gmt International Corp (USA) |
| Reference | Meaning |
|---|---|
| 1395AS1033 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5340-01-249-8877 is a Bumper, manufactured by Gmt International Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-249-8877 has 1 manufacturer part number on file: 20X12DA-GE (Gmt International Corp).
Key specifications for 20X12DA-GE: Overall Height: 1.060 INCHES NOMINAL IN; Outside/top Flange Diameter: 0.750 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN; Shank Length: 0.570 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN; Style Designator: FLAT RECESSED TOP THREADED STUD. 6 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.