PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1145-1Retainer,seat,valve

R & D Machine Rafael Anaya Div Defense Logistics Agency · NSN 4820-01-311-8143 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-311-8143 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-311-8143. Primary manufacturer part number: 1145-1.
Features
  • Retainer,seat,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: R & D Machine Rafael Anaya Div Defense Logistics Agency
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-311-8143, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is R & D Machine Rafael Anaya Div Defense Logistics Agency. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRetainer,seat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersR & D Machine Rafael Anaya Div Defense Logistics Agency (CAGE 8W880)
Technical Specifications
ParameterValue
NSN4820-01-311-8143
Primary Part Number1145-1
Item NameRetainer,seat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerR & D Machine Rafael Anaya Div Defense Logistics Agency
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5950-00-049-8427 INTERCHANGEABLE
Coil,radio Frequency
3895-00-162-0192 INTERCHANGEABLE
Bracket,shaft,drum
5999-00-219-291011451 INTERCHANGEABLE
Contact,electrical
Leslie Controls, Inc. Dba Leslie Controls Inc
2510-01-166-52853536341-802 INTERCHANGEABLE
Window,vehicular
Bae Systems Hagglunds Aktiebolag
3120-01-186-909411451 INTERCHANGEABLE
Bushing,sleeve
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
4940-01-264-564311451 INTERCHANGEABLE
Arm Assembly,geneva
L & R Manufacturing Company
4730-01-278-7373 INTERCHANGEABLE
Coupling Half,quick Disconnect
5360-01-279-2216 INTERCHANGEABLE
Spring,helical,compression
4820-01-369-323811451 INTERCHANGEABLE
Valve,butterfly
Admiral Valve Llc Dba Cpv Manufacturing
4730-01-480-695811451 INTERCHANGEABLE
Coupling Half,quick Disconnect
Isometrics Inc
Cross-Reference Index
Part NumberManufacturer
1145-1 PRIMARY R & D Machine Rafael Anaya Div Defense Logistics Agency (USA)
1140 ITEM 11 R & D Machine Rafael Anaya Div Defense Logistics Agency (USA)
1140 R & D Machine Rafael Anaya Div Defense Logistics Agency (USA)
Related Parts
5950-00-049-8427INTERCHANGEABLE
COIL,RADIO FREQUENCY
3895-00-162-0192INTERCHANGEABLE
BRACKET,SHAFT,DRUM
5999-00-219-2910INTERCHANGEABLE
CONTACT,ELECTRICAL
11451
2510-01-166-5285INTERCHANGEABLE
WINDOW,VEHICULAR
3536341-802
3120-01-186-9094INTERCHANGEABLE
BUSHING,SLEEVE
11451
4940-01-264-5643INTERCHANGEABLE
ARM ASSEMBLY,GENEVA
11451
4730-01-278-7373INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5360-01-279-2216INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-01-369-3238INTERCHANGEABLE
VALVE,BUTTERFLY
11451
4730-01-480-6958INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
11451
1310-01-698-4216INTERCHANGEABLE
DUMMY CARTRIDGE,40 MILLIMETER
11451

Frequently Asked Questions

What is NSN 4820-01-311-8143?

NSN 4820-01-311-8143 is a Retainer,seat,valve, manufactured by R & D Machine Rafael Anaya Div Defense Logistics Agency, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-311-8143?

NSN 4820-01-311-8143 has 3 cross-referenced part numbers: 1145-1 (R & D Machine Rafael Anaya Div Defense Logistics Agency), 1140 ITEM 11 (R & D Machine Rafael Anaya Div Defense Logistics Agency), 1140 (R & D Machine Rafael Anaya Div Defense Logistics Agency).

What NSN replaces 4820-01-311-8143?

There are 11 known substitutes for 4820-01-311-8143: 5950-00-049-8427, 3895-00-162-0192, 5999-00-219-2910 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com