PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10DDA39Washer,flat

Fwd Seagrave Holdings Lp · NSN 5310-00-220-6565 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-220-6565 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-220-6565. Primary manufacturer part number: 10DDA39.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.568 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Material: STEEL OVERALL
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.968 INCHES NOMINAL IN
  • Thickness: 0.020 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-220-6565, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-220-6565
Primary Part Number10DDA39
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFwd Seagrave Holdings Lp
StatusCANCELLED
Overall Diameter1.568 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
MaterialSTEEL OVERALL
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.968 INCHES NOMINAL IN
Thickness0.020 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6610-00-019-5426A1622 INTERCHANGEABLE
Bi-Metal Assembly
Aerosonic Llc
5998-00-070-00855329-1 INTERCHANGEABLE
Holder,printed Circuit Board
Rockwell Collins, Inc. Dba Rc Displays Systems
3120-00-236-3601183344 INTERCHANGEABLE
Bushing,sleeve
Woodward, Inc.
3455-00-289-837053-10007 INTERCHANGEABLE
Cutter,milling,shell End
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
6610-00-790-6714A1622 INTERCHANGEABLE
Inclinometerandreta
Kelly Manufacturing Company
5325-00-792-961991906 INTERCHANGEABLE
Insert,screw Thread
L3harris Technologies, Inc Div Space & Airborne Systems
6685-00-877-6588 INTERCHANGEABLE
Control,temperature,indicating
4730-01-016-3007 INTERCHANGEABLE
Adapter,straight,pipe to Tube
5930-01-021-1836A1622 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
8455-01-106-7781 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
DA39 Kaitlin Corp (USA)
91906 Graham Paige Corp (USA)
48G115 Oshkosh Defense Llc (USA)
48G115 Oshkosh Corp (USA)
10DDA39 PRIMARY Fwd Seagrave Holdings Lp (USA)
GPW10124 Ford Motor Company (USA)
DA39 Paccar Government Group Co Yarrow Bay Office Pk (USA)
DA39 Prestolite Electric Inc (USA)
1706254 PRIMARY Heil Environmental Industries (USA)
7375965 CAGE 00000
2F9866 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
17975M Diamond Reo Truck Co (USA)
183344 Sasco Inc Canadian Div
G121-0205450 PRIMARY Chief of Engineers Dept of Army (USA)
GPW10124 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
DA39 PRIMARY Prestolite Electric Inc (USA)
674928 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
DA39 PRIMARY Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
DA39 PRIMARY Kenworth Truck Co a Div of Paccar Inc (USA)
5A7150 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
6610-00-019-5426INTERCHANGEABLE
BI-METAL ASSEMBLY
A1622
5998-00-070-0085INTERCHANGEABLE
HOLDER,PRINTED CIRCUIT BOARD
5329-1
3120-00-236-3601INTERCHANGEABLE
BUSHING,SLEEVE
183344
3455-00-289-8370INTERCHANGEABLE
CUTTER,MILLING,SHELL END
53-10007
6610-00-790-6714INTERCHANGEABLE
INCLINOMETERANDRETA
A1622
5325-00-792-9619INTERCHANGEABLE
INSERT,SCREW THREAD
91906
6685-00-877-6588INTERCHANGEABLE
CONTROL,TEMPERATURE,INDICATING
4730-01-016-3007INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
5930-01-021-1836INTERCHANGEABLE
SWITCH,LIQUID LEVEL
A1622
8455-01-106-7781INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-106-7782INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
6645-01-126-7692INTERCHANGEABLE
TIMER,SEQUENTIAL
91-906

Frequently Asked Questions

What is NSN 5310-00-220-6565?

NSN 5310-00-220-6565 is a Washer,flat, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-220-6565?

NSN 5310-00-220-6565 has 21 cross-referenced part numbers: DA39 (Kaitlin Corp), 91906 (Graham Paige Corp), 48G115 (Oshkosh Defense Llc), 48G115 (Oshkosh Corp), 10DDA39 (Fwd Seagrave Holdings Lp) and 16 more.

What NSN replaces 5310-00-220-6565?

There are 12 known substitutes for 5310-00-220-6565: 6610-00-019-5426, 5998-00-070-0085, 3120-00-236-3601 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10DDA39?

Key specifications for 10DDA39: Overall Diameter: 1.568 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Material: STEEL OVERALL; Center Hole Shape Style: ROUND. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-220-6565 still in active supply?

NSN 5310-00-220-6565 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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