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NSN 4820-01-030-6453Government record, cited

Body, Valve4820-01-030-6453

NSN 4820-01-030-6453 · NIIN 010306453 · Part number P303-1
Weldon Pump Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 9Z270
Government record, cited
NSN 4820-01-030-6453 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-030-6453. Manufacturer of record part number: P303-1.
Also searched as  4820-01-030-6453 · 4820010306453 · NIIN 010306453 · 01-030-6453 · FSC 4820 Valves, Nonpowered · CAGE 9Z270 · P303-1
Nearby stock numbers  ·
Features
  • Body,valve — FSC 4820
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Weldon Pump Llc
Identification
  • NSN: 4820-01-030-6453
  • NIIN: 010306453
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: P303-1
  • Manufacturer: Weldon Pump Llc
General Description

The Body,valve, cataloged under National Stock Number 4820-01-030-6453, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Weldon Pump Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameBody,valve
FSC / FSG4820 — Valves, Nonpowered (FSG 48)
ManufacturersHartzell Engine Technologies Llc (CAGE 65PY1); Weldon Pump Llc (CAGE 9Z270)
Technical Specifications
ParameterValue
NSN4820-01-030-6453
Primary Part NumberP303-1
Item NameBody,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerWeldon Pump Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
⇄ Related Items 2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-273-04911300021 POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Concentric Rockford Inc
3439-01-364-0870HAYNES188DIA0-8MMRL10-14KG POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)Haynes International, Inc.
Cross-Reference Index
Part NumberManufacturer
P303-1 Hartzell Engine Technologies Llc (USA)
P303-1 PRIMARY Weldon Pump Llc (USA)
Reference documents
ReferenceMeaning
P303-1 5/9 Secondary reference
Weldon Tool Co the
Related Parts
4820-01-273-0491POSSIBLE MATCH
VALVE,SAFETY RELIEF
1300021
3439-01-364-0870POSSIBLE MATCH
ROD,WELDING
HAYNES188DIA0-8MMRL10-14KG

Frequently Asked Questions

What is NSN 4820-01-030-6453?

NSN 4820-01-030-6453 is a Body,valve, manufactured by Weldon Pump Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-030-6453?

NSN 4820-01-030-6453 has 2 manufacturer part numbers on file: P303-1 (Hartzell Engine Technologies Llc), P303-1 (Weldon Pump Llc).

What NSN replaces 4820-01-030-6453?

2 possible matches (shared part number, not a government interchangeability claim): 4820-01-273-0491, 3439-01-364-0870. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-030-6453 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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