PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-471Washer,seat Locking

Dresser Industries Inc Leroi Div · NSN 5310-00-509-2122 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-509-2122 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-509-2122. Primary manufacturer part number: 20-471.
Features
  • Washer,seat Locking — FSC 5310
  • 1 verified cross-reference
  • Primary manufacturer: Dresser Industries Inc Leroi Div
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,seat Locking, cataloged under National Stock Number 5310-00-509-2122, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,seat Locking
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersDresser Industries Inc Leroi Div (CAGE 35301)
Technical Specifications
ParameterValue
NSN5310-00-509-2122
Primary Part Number20-471
Item NameWasher,seat Locking
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-090-3950NE949-12445 INTERCHANGEABLE
Transformer,pulse
Cardwell Condenser Corp Lapointe-Admiral Div
2805-00-390-3442 INTERCHANGEABLE
Ring Set,piston
6685-00-434-4256 INTERCHANGEABLE
Bumper
5915-00-501-0546SM-C-157655 INTERCHANGEABLE
Filter,radio Frequency Interfere
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1650-00-824-329620471 INTERCHANGEABLE
Retainer,plug
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
8120-00-882-2699 INTERCHANGEABLE
Cylinder,compressed Gas
5930-01-190-51712047-1 INTERCHANGEABLE
Switch,proximity
White Conveyors, Inc.
3020-01-317-292320471 INTERCHANGEABLE
Gear,spur
Dana Commercial Vehicle Products, Llc
4820-01-364-160220471 INTERCHANGEABLE
Piston,valve
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4820-01-641-252820471 INTERCHANGEABLE
Valve,ball
United States Plastic Corp
Cross-Reference Index
Part NumberManufacturer
20-471 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5950-00-090-3950INTERCHANGEABLE
TRANSFORMER,PULSE
NE949-12445
2805-00-390-3442INTERCHANGEABLE
RING SET,PISTON
6685-00-434-4256INTERCHANGEABLE
BUMPER
5915-00-501-0546INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
SM-C-157655
1650-00-824-3296INTERCHANGEABLE
RETAINER,PLUG
20471
8120-00-882-2699INTERCHANGEABLE
CYLINDER,COMPRESSED GAS
5930-01-190-5171INTERCHANGEABLE
SWITCH,PROXIMITY
2047-1
3020-01-317-2923INTERCHANGEABLE
GEAR,SPUR
20471
4820-01-364-1602INTERCHANGEABLE
PISTON,VALVE
20471
4820-01-641-2528INTERCHANGEABLE
VALVE,BALL
20471

Frequently Asked Questions

What is NSN 5310-00-509-2122?

NSN 5310-00-509-2122 is a Washer,seat Locking, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-509-2122?

NSN 5310-00-509-2122 has 1 cross-referenced part number: 20-471 (Dresser Industries Inc Leroi Div).

What NSN replaces 5310-00-509-2122?

There are 10 known substitutes for 5310-00-509-2122: 5950-00-090-3950, 2805-00-390-3442, 6685-00-434-4256 and 7 more. Verify interchangeability with system specifications before substitution.

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