PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103321Washer,lock

Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems · NSN 5310-00-419-1819 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-419-1819 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-419-1819. Primary manufacturer part number: 103321.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.382 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Outside Diameter: 0.683 INCHES NOMINAL IN
  • Material Thickness: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-419-1819, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-419-1819
Primary Part Number103321
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerZf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
StatusACTIVE
Hole Diameter0.382 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Outside Diameter0.683 INCHES NOMINAL IN
Material Thickness0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-248-384510-3321 INTERCHANGEABLE
O-Ring
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5310-00-261-734000103321 INTERCHANGEABLE
Washer,lock
Rolls-Royce Solutions America Inc
1270-00-397-7471 INTERCHANGEABLE
Positioning Mechanism
5310-00-406-0923103321 INTERCHANGEABLE
Washer,lock
Napco International Llc Dba Napco International Inc
5310-00-981-2584 INTERCHANGEABLE
Washer
5998-01-329-2521 INTERCHANGEABLE
Circuit Card Assembly
5120-01-331-4148103321 INTERCHANGEABLE
Fixture,brush Setti
Moog Inc.
5310-01-396-3942 INTERCHANGEABLE
Washer,lock
4140-01-421-3633B550-225S/CCW INTERCHANGEABLE
Impeller,fan,centrifugal
Revcor Inc
5935-01-472-677313459295-1 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
103321 PRIMARY Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems (USA)
Related Parts
5331-00-248-3845INTERCHANGEABLE
O-RING
10-3321
5310-00-261-7340INTERCHANGEABLE
WASHER,LOCK
00103321
1270-00-397-7471INTERCHANGEABLE
POSITIONING MECHANISM
5310-00-406-0923INTERCHANGEABLE
WASHER,LOCK
103321
5310-00-981-2584INTERCHANGEABLE
WASHER
5998-01-329-2521INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5120-01-331-4148INTERCHANGEABLE
FIXTURE,BRUSH SETTI
103321
5310-01-396-3942INTERCHANGEABLE
WASHER,LOCK
4140-01-421-3633INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
B550-225S/CCW
5935-01-472-6773INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
13459295-1
5935-01-472-6785INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
13459295-2
5935-01-472-6794INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
13459295-3

Frequently Asked Questions

What is NSN 5310-00-419-1819?

NSN 5310-00-419-1819 is a Washer,lock, manufactured by Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-419-1819?

NSN 5310-00-419-1819 has 1 cross-referenced part number: 103321 (Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems).

What NSN replaces 5310-00-419-1819?

There are 12 known substitutes for 5310-00-419-1819: 5331-00-248-3845, 5310-00-261-7340, 1270-00-397-7471 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103321?

Key specifications for 103321: Hole Diameter: 0.382 INCHES MINIMUM AND 0.393 INCHES MAXIMUM IN; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.683 INCHES NOMINAL IN; Material Thickness: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN. 5 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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