PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13021Screw,assembled Washer

Meggitt (new Hampshire), Inc · NSN 5305-00-297-8449 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-297-8449 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-297-8449. Primary manufacturer part number: 13021.
Features
  • Screw,assembled Washer — FSC 5305
  • Washer Quantity: 1
  • Head Diameter: 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
  • Primary Washer Style: SPLIT HELICAL RING
  • Material Document and Classification: QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
  • Thread Series Designator: UNF
  • Material: COPPER ALLOY 274 FASTENER
  • Material: COPPER ALLOY PRIMARY WASHER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 274 Fastener construction
General Description

The Screw,assembled Washer, cataloged under National Stock Number 5305-00-297-8449, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meggitt (new Hampshire), Inc. Government technical data includes 19 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: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-297-8449
Primary Part Number13021
Item NameScrew,assembled Washer
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMeggitt (new Hampshire), Inc
StatusCANCELLED
Washer Quantity1
Head Diameter0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
Primary Washer StyleSPLIT HELICAL RING
Material Document and ClassificationQQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
Thread Series DesignatorUNF
MaterialCOPPER ALLOY 274 FASTENER
MaterialCOPPER ALLOY PRIMARY WASHER
Primary Washer Material Thickness0.031 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Minimum Yield Strength25000 POUNDS PER SQUARE INCH LBS
Internal Drive StyleSLOT
Thread Class2A A
Thread Length0.219 INCHES MINIMUM IN
Nominal Thread Diameter0.112 INCHES IN
Head StyleROUND
Head Height0.075 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN
Thread Quantity Per Inch48
Fastener Length0.348 INCHES NOMINAL IN
Primary Washer Outside Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5133-00-262-2169 INTERCHANGEABLE
Drill,twist
5805-00-503-1302013000-0000 INTERCHANGEABLE
Dial,telephone
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
5330-00-594-0065A1014-1-003 INTERCHANGEABLE
Gasket
Parker Hannifin Corporation Div Cylinder Division
5330-00-641-315613021 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-00-725-218813021 INTERCHANGEABLE
Seal,plain Encased
Saginaw Products Corporation Dba Cignys
5950-00-725-3711SMC500468-3 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-847-3762 INTERCHANGEABLE
Seal,plain Encased
5340-00-992-39307131 INTERCHANGEABLE
Cup,compression
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5998-01-167-041313021B INTERCHANGEABLE
Circuit Card Assembly
L3harris Technologies, Inc. Dba Harris Corporation
4730-01-241-4848 INTERCHANGEABLE
Nipple,tube
Cross-Reference Index
Part NumberManufacturer
13021 Meggitt (new Hampshire), Inc (USA)
Related Parts
5133-00-262-2169INTERCHANGEABLE
DRILL,TWIST
5805-00-503-1302INTERCHANGEABLE
DIAL,TELEPHONE
013000-0000
5330-00-594-0065INTERCHANGEABLE
GASKET
A1014-1-003
5330-00-641-3156INTERCHANGEABLE
SEAL,PLAIN ENCASED
13021
5330-00-725-2188INTERCHANGEABLE
SEAL,PLAIN ENCASED
13021
5950-00-725-3711INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SMC500468-3
5330-00-847-3762INTERCHANGEABLE
SEAL,PLAIN ENCASED
5340-00-992-3930INTERCHANGEABLE
CUP,COMPRESSION
7131
5998-01-167-0413INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
13021B
4730-01-241-4848INTERCHANGEABLE
NIPPLE,TUBE
5340-01-266-3003INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
13-021
5331-01-494-7200INTERCHANGEABLE
O-RING
130-21

Frequently Asked Questions

What is NSN 5305-00-297-8449?

NSN 5305-00-297-8449 is a Screw,assembled Washer, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-297-8449?

NSN 5305-00-297-8449 has 1 cross-referenced part number: 13021 (Meggitt (new Hampshire), Inc).

What NSN replaces 5305-00-297-8449?

There are 12 known substitutes for 5305-00-297-8449: 5133-00-262-2169, 5805-00-503-1302, 5330-00-594-0065 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13021?

Key specifications for 13021: Washer Quantity: 1; Head Diameter: 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN; Primary Washer Style: SPLIT HELICAL RING; Material Document and Classification: QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE FASTENER. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-297-8449 still in active supply?

NSN 5305-00-297-8449 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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