NSN 4810-01-443-7613 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-443-7613. Manufacturer of record part number: A-NB25221E-03-5IN-9.
Material Document and Classification: QQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed: 5.000 INCHES IN
Material: NICKEL ALLOY
1 manufacturer part number on file
Manufacturer of record: Hunt Valve Company, Inc.
Identification
NSN: 4810-01-443-7613
NIIN: 014437613
FSC: 4810 — Valves, Powered
FSG: 48 — Valves
Primary part number: A-NB25221E-03-5IN-9
Manufacturer: Hunt Valve Company, Inc.
General Description
The Stem,fluid Valve, cataloged under National Stock Number 4810-01-443-7613, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4810-01-443-7613
Primary Part Number
A-NB25221E-03-5IN-9
Item Name
Stem,fluid Valve
FSC / FSG
4810 / 48 — Valves, Powered
Manufacturer
Hunt Valve Company, Inc.
Status
ACTIVE
Valve Type for Which Designed
GLOBE
Material Document and Classification
QQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed
5.000 INCHES IN
Material
NICKEL ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4810-01-443-7641A-NB25221E-03-5IN-8POSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Hunt Valve Company, Inc.
4810-01-443-8650A-NB25221E-03-5IN-7POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Hunt Valve Company, Inc.
4810-01-443-8669A-NB25221E-03-5IN-6POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Hunt Valve Company, Inc.
4820-01-448-6739POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)
4820-01-448-8161POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)
4810-01-448-8708A-NB25221E-03-SPL-6IN.POSSIBLE MATCH
VALVE,STOP-CHECK
Possible match (shared part number)Hunt Valve Company, Inc.
NSN 4810-01-443-7613 is a Stem,fluid Valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4810, Valves, Powered. Status: active.
What part numbers are listed for NSN 4810-01-443-7613?
NSN 4810-01-443-7613 has 1 manufacturer part number on file: A-NB25221E-03-5IN-9 (Hunt Valve Company, Inc.).
What NSN replaces 4810-01-443-7613?
6 possible matches (shared part number, not a government interchangeability claim): 4810-01-443-7641, 4810-01-443-8650, 4810-01-443-8669. Verify interchangeability with system specifications before substitution.
What are the specifications of A-NB25221E-03-5IN-9?
Key specifications for A-NB25221E-03-5IN-9: Valve Type for Which Designed: GLOBE; Material Document and Classification: QQ-N-281, CLA FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 5.000 INCHES IN; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4810-01-443-7613 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.