PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

718661M16SPCLNWasher,shear Seal Spring

Hydro-Aire Aerospace Corp · NSN 4470-00-935-9480 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-935-9480 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-935-9480. Primary manufacturer part number: 718661M16SPCLN.
Features
  • Washer,shear Seal Spring — FSC 4470
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 9 verified cross-references
  • Primary manufacturer: Hydro-Aire Aerospace Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
General Description

The Washer,shear Seal Spring, cataloged under National Stock Number 4470-00-935-9480, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4470-00-935-9480
Primary Part Number718661M16SPCLN
Item NameWasher,shear Seal Spring
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4820-00-036-188383427 INTERCHANGEABLE
Seat,valve
Ashcroft Inc Dba Heise
5815-00-126-868783427 INTERCHANGEABLE
Glass
Telemechanics Inc
3110-00-947-6315 INTERCHANGEABLE
Ball,bearing
5330-01-135-8133 INTERCHANGEABLE
Retainer,packing
5330-01-200-4443 INTERCHANGEABLE
Packing,preformed
5310-01-215-138422507-1B INTERCHANGEABLE
Washer,spring Tension
Barksdale, Inc
5360-01-230-3990 INTERCHANGEABLE
Spring,helical,compression
5331-01-231-0939 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
718661M16SPCLN Hydro-Aire Aerospace Corp (USA)
83427 Hydro-Aire Aerospace Corp (USA)
83427 Barksdale, Inc (USA)
718691M20SPCLN Hydro-Aire Aerospace Corp (USA)
A22507-1BSPCLN Barksdale, Inc (USA)
C98124 Barksdale, Inc (USA)
83427SPCLN Hydro-Aire Aerospace Corp (USA)
22507-1B Barksdale, Inc (USA)
A22507-1B Barksdale, Inc (USA)
Related Parts
4820-00-036-1883INTERCHANGEABLE
SEAT,VALVE
83427
5815-00-126-8687INTERCHANGEABLE
GLASS
83427
3110-00-947-6315INTERCHANGEABLE
BALL,BEARING
5330-01-135-8133INTERCHANGEABLE
RETAINER,PACKING
5330-01-200-4443INTERCHANGEABLE
PACKING,PREFORMED
5310-01-215-1384INTERCHANGEABLE
WASHER,SPRING TENSION
22507-1B
5360-01-230-3990INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5331-01-231-0939INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 4470-00-935-9480?

NSN 4470-00-935-9480 is a Washer,shear Seal Spring, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4470 (No Item Name Available). Status: active.

What are the part numbers for NSN 4470-00-935-9480?

NSN 4470-00-935-9480 has 9 cross-referenced part numbers: 718661M16SPCLN (Hydro-Aire Aerospace Corp), 83427 (Hydro-Aire Aerospace Corp), 83427 (Barksdale, Inc), 718691M20SPCLN (Hydro-Aire Aerospace Corp), A22507-1BSPCLN (Barksdale, Inc) and 4 more.

What NSN replaces 4470-00-935-9480?

There are 8 known substitutes for 4470-00-935-9480: 4820-00-036-1883, 5815-00-126-8687, 3110-00-947-6315 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 718661M16SPCLN?

Key specifications for 718661M16SPCLN: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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