PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26-29XX-XXXXA020-021Washer,flat

Tescom Corp Dba Tescom Div Tescom · NSN 5310-01-633-6990 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-633-6990 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-633-6990. Primary manufacturer part number: 26-29XX-XXXXA020-021.
Features
  • Washer,flat — FSC 5310
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • Criticality Code Justification: ZZZY
  • 8 verified cross-references
  • Primary manufacturer: Tescom Corp Dba Tescom Div Tescom
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-633-6990, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-633-6990
Primary Part Number26-29XX-XXXXA020-021
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5820-00-164-718451Q1 INTERCHANGEABLE
Receiver,radio
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5133-00-266-9476 INTERCHANGEABLE
Drill,twist
5315-00-431-588246159 INTERCHANGEABLE
Pin,drive,power Actuated
Hilti Inc
5330-00-710-869746159 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5845-00-757-538646159 INTERCHANGEABLE
Pulse Generator Car
L3harris Technologies, Inc. Div Space and Airborne Systems
6210-01-331-95364-6159 INTERCHANGEABLE
Lens,light
Control Technology Co Inc Dba Control Technology Co Inc
6130-01-480-287446159 INTERCHANGEABLE
Power Supply
University of Washington Div Applied Physics Laboratory
Cross-Reference Index
Part NumberManufacturer
26-29XX-XXXXA020-021 Tescom Corp Dba Tescom Div Tescom (USA)
26-29XX-XXXXA020-021D0 Naval Inventory Control Point Mechanicsburg (USA)
7550478-26-29XX-XXXXA020-021 Naval Sea Systems Command (USA)
4615-9 Tescom Corp Dba Tescom Div Tescom (USA)
4615-9D0 Naval Inventory Control Point Mechanicsburg (USA)
G547-0002-26-29XX-XXXXA020-021 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
G547-0002-26-29XX-XXXXA020-021D0 Naval Inventory Control Point Mechanicsburg (USA)
7550478-26-29XX-XXXXA020-021D0 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5820-00-164-7184INTERCHANGEABLE
RECEIVER,RADIO
51Q1
5133-00-266-9476INTERCHANGEABLE
DRILL,TWIST
5315-00-431-5882INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
46159
5330-00-710-8697INTERCHANGEABLE
SEAL,PLAIN ENCASED
46159
5845-00-757-5386INTERCHANGEABLE
PULSE GENERATOR CAR
46159
6210-01-331-9536INTERCHANGEABLE
LENS,LIGHT
4-6159
6130-01-480-2874INTERCHANGEABLE
POWER SUPPLY
46159

Frequently Asked Questions

What is NSN 5310-01-633-6990?

NSN 5310-01-633-6990 is a Washer,flat, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-633-6990?

NSN 5310-01-633-6990 has 8 cross-referenced part numbers: 26-29XX-XXXXA020-021 (Tescom Corp Dba Tescom Div Tescom), 26-29XX-XXXXA020-021D0 (Naval Inventory Control Point Mechanicsburg), 7550478-26-29XX-XXXXA020-021 (Naval Sea Systems Command), 4615-9 (Tescom Corp Dba Tescom Div Tescom), 4615-9D0 (Naval Inventory Control Point Mechanicsburg) and 3 more.

What NSN replaces 5310-01-633-6990?

There are 7 known substitutes for 5310-01-633-6990: 5820-00-164-7184, 5133-00-266-9476, 5315-00-431-5882 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26-29XX-XXXXA020-021?

Key specifications for 26-29XX-XXXXA020-021: Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES; 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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