PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

53-128Screw,cap,socket Head

Tescom Corp Dba Tescom Div Tescom · NSN 5305-00-844-7073 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-844-7073 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-844-7073. Primary manufacturer part number: 53-128.
Features
  • Screw,cap,socket Head — FSC 5305
  • Internal Drive Style: HEXAGON
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Head Diameter: 0.438 INCHES NOMINAL IN
  • Width Across Flats: 0.221 INCHES NOMINAL IN
  • Head Height: 0.312 INCHES NOMINAL IN
  • Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Length: 1.625 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 or Steel Comp 1011 or Steel Comp 1013 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-844-7073, is classified within Federal Supply Class 5305 (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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5305-00-844-7073
Primary Part Number53-128
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Internal Drive StyleHEXAGON
Nominal Thread Diameter0.375 INCHES IN
Head Diameter0.438 INCHES NOMINAL IN
Width Across Flats0.221 INCHES NOMINAL IN
Head Height0.312 INCHES NOMINAL IN
Hardness Rating39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
Thread Length1.625 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch16
Thread Class2A A
Thread DirectionRIGHT-HAND
Head StyleFLAT CHAMFER
Fastener Length1.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-189-9318 INTERCHANGEABLE
Drill,twist
5930-00-224-566814824 INTERCHANGEABLE
Switch,push-Pull
Camdec Corp
2930-00-430-847476197B INTERCHANGEABLE
Shaft,engine Water
Brinkley Technology Group Llc Dba Hercules Manufacturing
4010-01-506-596353128-4-.190-.250 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-506-597253128-7.190-.250 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-506-597553128-8-190-.250 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-523-682353128-6-.190-.250 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-574-436353128-14-.190-.190 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-574-437653128-5-.190-.250 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
4010-01-574-438053128-5-.190-.190 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Avibank Mfg., Inc. Dba Avibank Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
5305PL0633135 Jednolity Indeks Materialowy - Uniform Material Index (POL)
53-128 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
53-128 PRIMARY Tescom Corp Dba Tescom Div Tescom (USA)
Related Parts
5133-00-189-9318INTERCHANGEABLE
DRILL,TWIST
5930-00-224-5668INTERCHANGEABLE
SWITCH,PUSH-PULL
14824
2930-00-430-8474INTERCHANGEABLE
SHAFT,ENGINE WATER
76197B
4010-01-506-5963INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-4-.190-.250
4010-01-506-5972INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-7.190-.250
4010-01-506-5975INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-8-190-.250
4010-01-523-6823INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-6-.190-.250
4010-01-574-4363INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-14-.190-.190
4010-01-574-4376INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-5-.190-.250
4010-01-574-4380INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-5-.190-.190
4010-01-574-4387INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-8-.190-.190
4010-01-574-4397INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
53128-5-.250-.190

Frequently Asked Questions

What is NSN 5305-00-844-7073?

NSN 5305-00-844-7073 is a Screw,cap,socket Head, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-844-7073?

NSN 5305-00-844-7073 has 3 cross-referenced part numbers: 5305PL0633135 (Jednolity Indeks Materialowy - Uniform Material Index), 53-128 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 53-128 (Tescom Corp Dba Tescom Div Tescom).

What NSN replaces 5305-00-844-7073?

There are 12 known substitutes for 5305-00-844-7073: 5133-00-189-9318, 5930-00-224-5668, 2930-00-430-8474 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 53-128?

Key specifications for 53-128: Internal Drive Style: HEXAGON; Nominal Thread Diameter: 0.375 INCHES IN; Head Diameter: 0.438 INCHES NOMINAL IN; Width Across Flats: 0.221 INCHES NOMINAL IN. 15 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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