PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-71801Washer,key

Spx Flow Us, Llc Dba Spx Valves & Controls · NSN 5310-00-898-0156 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-898-0156 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-898-0156. Primary manufacturer part number: 1-71801.
Features
  • Washer,key — FSC 5310
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 5 verified cross-references
  • Primary manufacturer: Spx Flow Us, Llc Dba Spx Valves & Controls
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,key, cataloged under National Stock Number 5310-00-898-0156, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Spx Flow Us, Llc Dba Spx Valves & Controls. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN5310-00-898-0156
Primary Part Number1-71801
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSpx Flow Us, Llc Dba Spx Valves & Controls
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-045-69341270-63 INTERCHANGEABLE
Transformer,power
Frequency Electronics Inc
2520-00-404-7059367007C91 INTERCHANGEABLE
Carrier,differentia
Navistar Intl Corp Truck Br Ohio Plant
5310-00-540-49762810H34-047-3 INTERCHANGEABLE
Washer,flat
Us Army Aviation and Missile Command
2520-00-757-7517370649C91 INTERCHANGEABLE
Cover and Seal,rear Axle Differe
Dressta North America Ltd
2915-00-767-250771801 INTERCHANGEABLE
Retainer,seal
Triumph Engine Control Systems Llc
5935-00-988-5515712262-23 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Div Rmd Strategic
5340-01-503-0654 INTERCHANGEABLE
Strap,webbing
2910-01-716-513471801 INTERCHANGEABLE
Filter Element,fluid
Amazon.com Services Llc
Cross-Reference Index
Part NumberManufacturer
1-71801 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
X74942PC20 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
820-2179118PC4 Naval Ship Systems Command (USA)
71801 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
820-2179118-4 Naval Ship Systems Command (USA)
Related Parts
5950-00-045-6934INTERCHANGEABLE
TRANSFORMER,POWER
1270-63
2520-00-404-7059INTERCHANGEABLE
CARRIER,DIFFERENTIA
367007C91
5310-00-540-4976INTERCHANGEABLE
WASHER,FLAT
2810H34-047-3
2520-00-757-7517INTERCHANGEABLE
COVER AND SEAL,REAR AXLE DIFFERE
370649C91
2915-00-767-2507INTERCHANGEABLE
RETAINER,SEAL
71801
5935-00-988-5515INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
712262-23
5340-01-503-0654INTERCHANGEABLE
STRAP,WEBBING
2910-01-716-5134INTERCHANGEABLE
FILTER ELEMENT,FLUID
71801

Frequently Asked Questions

What is NSN 5310-00-898-0156?

NSN 5310-00-898-0156 is a Washer,key, manufactured by Spx Flow Us, Llc Dba Spx Valves & Controls, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-898-0156?

NSN 5310-00-898-0156 has 5 cross-referenced part numbers: 1-71801 (Spx Flow Us, Llc Dba Spx Valves & Controls), X74942PC20 (Spx Flow Us, Llc Dba Spx Valves & Controls), 820-2179118PC4 (Naval Ship Systems Command), 71801 (Spx Flow Us, Llc Dba Spx Valves & Controls), 820-2179118-4 (Naval Ship Systems Command).

What NSN replaces 5310-00-898-0156?

There are 8 known substitutes for 5310-00-898-0156: 5950-00-045-6934, 2520-00-404-7059, 5310-00-540-4976 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-71801?

Key specifications for 1-71801: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 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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