PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120-276C4T19Screw,assembled Washer

Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company · NSN 5305-01-655-9201 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-655-9201 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-655-9201. Primary manufacturer part number: 120-276C4T19.
Features
  • Screw,assembled Washer — FSC 5305
  • Head Style: ROUND EXTENDED WASHER
  • Internal Drive Style: TORX
  • Extended Washer Thickness: 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
  • Extended Washer Diameter: 0.500 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Primary Washer Style: FLAT
  • Head Minor Diameter: 0.437 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,assembled Washer, cataloged under National Stock Number 5305-01-655-9201, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-655-9201
Primary Part Number120-276C4T19
Item NameScrew,assembled Washer
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba Air Industries Company Div Air Industries Company
StatusACTIVE
Head StyleROUND EXTENDED WASHER
Internal Drive StyleTORX
Extended Washer Thickness0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
Extended Washer Diameter0.500 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Primary Washer StyleFLAT
Head Minor Diameter0.437 INCHES NOMINAL IN
Thread Class3A A
Washer Quantity1
Thread Quantity Per Inch28
Handle Diameter0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
Head Height0.500 INCHES NOMINAL IN
Head Diameter0.437 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-01-571-4741120-276V3T14 INTERCHANGEABLE
Screw,washer Head,a
Bell Textron Inc
6145-01-609-8321MC-006953 INTERCHANGEABLE
Cable,radio Frequency
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5305-01-655-9236120-276C4T14 INTERCHANGEABLE
Screw,assembled Washer
Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company
5305-01-697-2733120-276V08T7 INTERCHANGEABLE
Screw,machine
Bell Textron Inc
Cross-Reference Index
Part NumberManufacturer
120-276C4T19 PRIMARY Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
120-276C4T19 PRIMARY Alta Products Co Inc (USA)
120-276C4T19 PRIMARY B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA)
120-276C4T19 PRIMARY Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
120-276C4T19 PRIMARY Saturn Fasteners Inc (USA)
120-276C4T19 Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona (USA)
120-276C4T19 Bell Textron Inc (USA)
120-276C4T19 3-V Fastener Co., Inc. (USA)
120-276C4T19 PRIMARY Heartland Precision Fasteners Inc (USA)
120-276 Bell Textron Inc (USA)
120-276C4T19 PRIMARY Lfc Industries, Inc. (USA)
Related Parts
5305-01-571-4741INTERCHANGEABLE
SCREW,WASHER HEAD,A
120-276V3T14
6145-01-609-8321INTERCHANGEABLE
CABLE,RADIO FREQUENCY
MC-006953
5305-01-655-9236INTERCHANGEABLE
SCREW,ASSEMBLED WASHER
120-276C4T14
5305-01-697-2733INTERCHANGEABLE
SCREW,MACHINE
120-276V08T7

Frequently Asked Questions

What is NSN 5305-01-655-9201?

NSN 5305-01-655-9201 is a Screw,assembled Washer, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-655-9201?

NSN 5305-01-655-9201 has 11 cross-referenced part numbers: 120-276C4T19 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 120-276C4T19 (Alta Products Co Inc), 120-276C4T19 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 120-276C4T19 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana), 120-276C4T19 (Saturn Fasteners Inc) and 6 more.

What NSN replaces 5305-01-655-9201?

There are 4 known substitutes for 5305-01-655-9201: 5305-01-571-4741, 6145-01-609-8321, 5305-01-655-9236 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 120-276C4T19?

Key specifications for 120-276C4T19: Head Style: ROUND EXTENDED WASHER; Internal Drive Style: TORX; Extended Washer Thickness: 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN; Extended Washer Diameter: 0.500 INCHES NOMINAL IN. 17 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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