PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

010991Washer,seal

Circor Pumps North America Llc · NSN 5310-01-435-2394 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-435-2394 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-435-2394. Primary manufacturer part number: 010991.
Features
  • Washer,seal — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Circor Pumps North America Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
General Description

The Washer,seal, cataloged under National Stock Number 5310-01-435-2394, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Pumps North America Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,seal
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersCircor Pumps North America Llc (CAGE 59180); Imo Ab (CAGE S3863)
Technical Specifications
ParameterValue
NSN5310-01-435-2394
Primary Part Number010991
Item NameWasher,seal
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCircor Pumps North America Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4720-00-555-3883010991 INTERCHANGEABLE
Hose Assembly,metallic
Senior Operations Llc Div Senior Aerospace Ssp
5940-00-621-1969 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
010991 PRIMARY Circor Pumps North America Llc (USA)
010991 Imo Ab (SWE)
Related Parts
4720-00-555-3883INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
010991
5940-00-621-1969INTERCHANGEABLE
TERMINAL BOARD

Frequently Asked Questions

What is NSN 5310-01-435-2394?

NSN 5310-01-435-2394 is a Washer,seal, manufactured by Circor Pumps North America Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-435-2394?

NSN 5310-01-435-2394 has 2 cross-referenced part numbers: 010991 (Circor Pumps North America Llc), 010991 (Imo Ab).

What NSN replaces 5310-01-435-2394?

There are 2 known substitutes for 5310-01-435-2394: 4720-00-555-3883, 5940-00-621-1969. Verify interchangeability with system specifications before substitution.

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