PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31047Washer,flat

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 5310-01-705-9021 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-705-9021 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-705-9021. Primary manufacturer part number: 31047.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.750 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-705-9021, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-705-9021
Primary Part Number31047
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Center Hole Shape StyleROUND
Hole Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5930-00-072-0852310-47 INTERCHANGEABLE
Switch,sensitive
Keysight Technologies Inc
5975-00-074-2072MS3367-1-9 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Sae International Dba Sae International
5325-00-166-546831047 INTERCHANGEABLE
Ring,retaining
Goodrich Corporation Dba Goodrich Corp
5930-00-472-233319MS703 INTERCHANGEABLE
Switch,sensitive
Keysight Technologies Inc
6550-01-031-6436231047 INTERCHANGEABLE
Differentiation Discs,microorgan
Becton, Dickinson and Company Dba Becton Dickinson & Co
5930-01-186-512231047 INTERCHANGEABLE
Switch,toggle
Teledyne Landis/oster Teledyne Industries Inc Sub of Teledyne Inc
5305-01-504-0004310-47 INTERCHANGEABLE
Screw,machine
Crane Carrier Company, Llc
3040-01-516-706231047 INTERCHANGEABLE
Connecting Link,rigid
Woodward, Inc.
2530-01-728-187031-047 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
31047 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
5930-00-072-0852INTERCHANGEABLE
SWITCH,SENSITIVE
310-47
5975-00-074-2072INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
MS3367-1-9
5325-00-166-5468INTERCHANGEABLE
RING,RETAINING
31047
5930-00-472-2333INTERCHANGEABLE
SWITCH,SENSITIVE
19MS703
6550-01-031-6436INTERCHANGEABLE
DIFFERENTIATION DISCS,MICROORGAN
231047
5930-01-186-5122INTERCHANGEABLE
SWITCH,TOGGLE
31047
5305-01-504-0004INTERCHANGEABLE
SCREW,MACHINE
310-47
3040-01-516-7062INTERCHANGEABLE
CONNECTING LINK,RIGID
31047
2530-01-728-1870INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
31-047

Frequently Asked Questions

What is NSN 5310-01-705-9021?

NSN 5310-01-705-9021 is a Washer,flat, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-705-9021?

NSN 5310-01-705-9021 has 1 cross-referenced part number: 31047 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 5310-01-705-9021?

There are 9 known substitutes for 5310-01-705-9021: 5930-00-072-0852, 5975-00-074-2072, 5325-00-166-5468 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31047?

Key specifications for 31047: Special Features: NHA-UPPER RECEIVER ASSEMBLY SK1, SR-16; Center Hole Shape Style: ROUND; Hole Diameter: 0.750 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: WASHER GAS BLOCK. 4 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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