The Parts Kit,air Spring, cataloged under National Stock Number 2510-01-655-5511, is classified within Federal Supply Class 2510 (Vehicular Cab, Body, and Frame Structural Components) of the Vehicular Equipment Components group. The manufacturer of record is Hendrickson Trailer Suspension Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2510-01-655-5511 |
| Primary Part Number | A-4903 |
| Item Name | Parts Kit,air Spring |
| FSC / FSG | 2510 / 25 — Vehicular Cab, Body, and Frame Structural Components |
| Manufacturer | Hendrickson Trailer Suspension Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2510-01-655-5511 is a Parts Kit,air Spring, manufactured by Hendrickson Trailer Suspension Systems, classified under FSC 2510, Vehicular Cab, Body, and Frame Structural Components. Status: active.
NSN 2510-01-655-5511 has 2 manufacturer part numbers on file: 121546 (Haulmark Trailers (australia) Pty Ltd), A-4903 (Hendrickson Trailer Suspension Systems).
1 possible match (shared part number, not a government interchangeability claim): 4940-01-715-0873. Verify interchangeability with system specifications before substitution.
Key specifications for A-4903: Special Features: INCLUDES 4 OFF NUT, PLAIN HEXAGON, 3/4IN. UNF, 1-1/8IN. AF, CLASS 2B, ZINC PLATED, STEEL, 2 OFF PLUG, PIPE, INTERNAL HEX, 1/4IN. NPTF, 1/4IN HEX, ZINC PLATED, STEEL, AND 4 OFF BOLT, MACHINE, HEX FLANGE, 1/2IN. UNC, 1.25IN. LG, BLACK, STEEL IN. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.