The Seat,valve, cataloged under National Stock Number 4810-00-126-3103, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is M.t. Davidson Company. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-126-3103 |
| Primary Part Number | G53-135 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | M.t. Davidson Company |
| Status | ACTIVE |
| FSC Application Data | STEAM POWERED FIRE AND BILGEPUMP |
| Style Designator | PLAIN THREADED |
| Material | COPPER OVERALL |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| G53-135 PRIMARY | M.t. Davidson Company (USA) |
| Reference | Meaning |
|---|---|
| G54 | 5/1 Secondary reference M.t. Davidson Company |
| 53 | 5/9 Secondary reference M.t. Davidson Company |
NSN 4810-00-126-3103 is a Seat,valve, manufactured by M.t. Davidson Company, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-126-3103 has 1 manufacturer part number on file: G53-135 (M.t. Davidson Company).
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-640-8561, 4930-00-796-8708, 5310-01-191-0292. Verify interchangeability with system specifications before substitution.
Key specifications for G53-135: FSC Application Data: STEAM POWERED FIRE AND BILGEPUMP; Style Designator: PLAIN THREADED; Material: COPPER OVERALL; Seating Surface Shape: FLAT. 4 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.