The Cover,access, cataloged under National Stock Number 5340-01-144-3985, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-144-3985 |
| Primary Part Number | 99058 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS2470 ASSN STD SINGLE TREATMENT RESPONSE |
| First Recess Inside Height | 0.340 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Features Provided | HANDLE FOR OPENING, LIFTING, CLOSING, OR THE LIKE |
| Securing Device Type | SPECIAL |
| Inside Diameter | 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Outside Corner Radius | 0.180 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Hole Diameter | 0.226 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 99058 PRIMARY | Triumph Engine Control Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 10112747 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-01-144-3985 is a Cover,access, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-144-3985 has 1 manufacturer part number on file: 99058 (Triumph Engine Control Systems Llc).
Key specifications for 99058: Surface Treatment Document and Classification: AMS2470 ASSN STD SINGLE TREATMENT RESPONSE; First Recess Inside Height: 0.340 INCHES NOMINAL IN; Mounting Opening Shape Style: UNTHREADED HOLE; Cross-Sectional Shape Style: CIRCULAR RECESS. 11 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.
NSN 5340-01-144-3985 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.