PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51356Screw,externally Relieved Body

Hathaway Corporation · NSN 5305-00-625-9952 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-625-9952 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-625-9952. Primary manufacturer part number: 51356.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Surface Treatment Document and Classification: MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: QQ-S-763 COND A CF6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Distance From Largest Bearing Surface of Head to End of Third Diameter: 0.281 INCHES NOMINAL IN
  • Internal Drive Style: SLOT
  • Thread Length: 0.469 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 40
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-625-9952, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hathaway Corporation. Government technical data includes 22 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-625-9952
Primary Part Number51356
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHathaway Corporation
StatusACTIVE
Surface Treatment Document and ClassificationMIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-S-763 COND A CF6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Distance From Largest Bearing Surface of Head to End of Third Diameter0.281 INCHES NOMINAL IN
Internal Drive StyleSLOT
Thread Length0.469 INCHES NOMINAL IN
Thread Quantity Per Inch40
Third Diameter From Head0.156 INCHES NOMINAL IN
Fastener Length0.750 INCHES NOMINAL IN
Second Diameter From Head0.116 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
Distance From Largest Bearing Surface of Head to End of Second Diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
Distance From Largest Bearing Surface of Head to End of First Diameter0.172 INCHES NOMINAL IN
First Diameter From Head0.155 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Head Height0.062 INCHES NOMINAL IN
Externally Relieved Body Diameter Quantity3
Nominal Thread Diameter0.138 INCHES IN
Head StylePAN NO. 2
MaterialSTEEL COMP 416 OVERALL
Thread Series DesignatorUNF
Thread Class2A A
Thread DirectionRIGHT-HAND
Head Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-328-334451356 INTERCHANGEABLE
Strainer Element,sediment
Pti Technologies Inc.
4520-01-317-386651356 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
5305-01-566-0732MIL-001-299 INTERCHANGEABLE
Screw,cap,socket Head
Fascan International, Inc.
2940-01-626-344831A40-02101 INTERCHANGEABLE
Filter,fluid
Mitsubishi Heavy Industries America, Inc.
Cross-Reference Index
Part NumberManufacturer
51356 Hathaway Corporation (USA)
Related Parts
4730-00-328-3344INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
51356
4520-01-317-3866INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
51356
5305-01-566-0732INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
MIL-001-299
2940-01-626-3448INTERCHANGEABLE
FILTER,FLUID
31A40-02101

Frequently Asked Questions

What is NSN 5305-00-625-9952?

NSN 5305-00-625-9952 is a Screw,externally Relieved Body, manufactured by Hathaway Corporation, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-625-9952?

NSN 5305-00-625-9952 has 1 cross-referenced part number: 51356 (Hathaway Corporation).

What NSN replaces 5305-00-625-9952?

There are 4 known substitutes for 5305-00-625-9952: 4730-00-328-3344, 4520-01-317-3866, 5305-01-566-0732 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51356?

Key specifications for 51356: Surface Treatment Document and Classification: MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-S-763 COND A CF6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: PASSIVATE OVERALL; Distance From Largest Bearing Surface of Head to End of Third Diameter: 0.281 INCHES NOMINAL IN. 22 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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