PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-1994 PIECE 3 THRU 7 1-1/2INCHParts Kit,check Valve

Hunt Valve Company, Inc. · NSN 4820-01-091-8129 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-091-8129 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-091-8129. Primary manufacturer part number: D-1994 PIECE 3 THRU 7 1-1/2INCH.
Features
  • Parts Kit,check Valve — FSC 4820
  • Supply Items and Quantities: DISK 1;HINGE 1;RETAINER 1;PIN 2; AJJWA5
  • 3 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,check Valve, cataloged under National Stock Number 4820-01-091-8129, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-091-8129
Primary Part NumberD-1994 PIECE 3 THRU 7 1-1/2INCH
Item NameParts Kit,check Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Supply Items and QuantitiesDISK 1;HINGE 1;RETAINER 1;PIN 2; AJJWA5
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-01-091-4684 INTERCHANGEABLE
Seat,valve
4820-01-091-6962 INTERCHANGEABLE
Valve,check
4820-01-091-7996 INTERCHANGEABLE
Valve,check
4820-01-091-8053 INTERCHANGEABLE
Seat,valve
4820-01-091-8054A1908PJ INTERCHANGEABLE
Seat,valve
Hunt Valve Company, Inc.
4820-01-092-4294D-1994 SIZE 1IN INTERCHANGEABLE
Valve,check
Hunt Valve Company, Inc.
4820-01-103-7312D-1994 PC 3,4,6,7 INTERCHANGEABLE
Parts Kit,check Valve
Hunt Valve Company, Inc.
4820-01-155-0328 INTERCHANGEABLE
Cap,valve
4820-01-191-2710 INTERCHANGEABLE
Cap,valve
4820-01-191-2711B-1902 INTERCHANGEABLE
Cap,valve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
D-1994 P J Valves Inc (USA)
D-1994 PIECE 3 THRU 7 1-1/2INCH PRIMARY Hunt Valve Company, Inc. (USA)
D-1994 PIECE 3 THRU 7 1 1-2IN P J Valves Inc (USA)
Related Parts
4820-01-091-4684INTERCHANGEABLE
SEAT,VALVE
4820-01-091-6962INTERCHANGEABLE
VALVE,CHECK
4820-01-091-7996INTERCHANGEABLE
VALVE,CHECK
4820-01-091-8053INTERCHANGEABLE
SEAT,VALVE
4820-01-091-8054INTERCHANGEABLE
SEAT,VALVE
A1908PJ
4820-01-092-4294INTERCHANGEABLE
VALVE,CHECK
D-1994 SIZE 1IN
4820-01-103-7312INTERCHANGEABLE
PARTS KIT,CHECK VALVE
D-1994 PC 3,4,6,7
4820-01-155-0328INTERCHANGEABLE
CAP,VALVE
4820-01-191-2710INTERCHANGEABLE
CAP,VALVE
4820-01-191-2711INTERCHANGEABLE
CAP,VALVE
B-1902

Frequently Asked Questions

What is NSN 4820-01-091-8129?

NSN 4820-01-091-8129 is a Parts Kit,check Valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-091-8129?

NSN 4820-01-091-8129 has 3 cross-referenced part numbers: D-1994 (P J Valves Inc), D-1994 PIECE 3 THRU 7 1-1/2INCH (Hunt Valve Company, Inc.), D-1994 PIECE 3 THRU 7 1 1-2IN (P J Valves Inc).

What NSN replaces 4820-01-091-8129?

There are 10 known substitutes for 4820-01-091-8129: 4820-01-091-4684, 4820-01-091-6962, 4820-01-091-7996 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D-1994 PIECE 3 THRU 7 1-1/2INCH?

Key specifications for D-1994 PIECE 3 THRU 7 1-1/2INCH: Supply Items and Quantities: DISK 1;HINGE 1;RETAINER 1;PIN 2; AJJWA5. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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