PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90304Nut,retainer Assy

Heintz Corp · NSN 5310-01-197-4373 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-197-4373 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-197-4373. Primary manufacturer part number: 90304.
Features
  • Nut,retainer Assy — FSC 5310
  • General Characteristics Item Description: STEEL,ZINC PLATE,0.375-16 UNC 2B THREADED NUT,2.000 IN. LG,0.781 IN. W,0.045 IN. IN AND 0.050 IN. MAX PLATE THICKNESS IN
  • 3 verified cross-references
  • Primary manufacturer: Heintz Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,retainer Assy, cataloged under National Stock Number 5310-01-197-4373, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Heintz Corp. Government technical data includes 1 verified specification, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-197-4373
Primary Part Number90304
Item NameNut,retainer Assy
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHeintz Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL,ZINC PLATE,0.375-16 UNC 2B THREADED NUT,2.000 IN. LG,0.781 IN. W,0.045 IN. IN AND 0.050 IN. MAX PLATE THICKNESS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6625-00-316-9328CY749PRM1 INTERCHANGEABLE
Case,electrical-Electronic Test
Joint Electronics Type Designation System
5950-00-835-117590304 INTERCHANGEABLE
Coil,radio Frequency
L3harris Technologies, Inc Div Space & Airborne Systems
7045-01-260-0242DFT35/60 INTERCHANGEABLE
File,disk,flexible
Dataware Electronics Corp Sub of Dataware Systems Lease Inc
5325-01-721-322490304 INTERCHANGEABLE
Ring,retaining
Worth Co Inc
Cross-Reference Index
Part NumberManufacturer
90304 Heintz Corp (USA)
33-43002-B-10 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
90304 Apex Precision Technologies, Inc. (USA)
Related Parts
6625-00-316-9328INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
CY749PRM1
5950-00-835-1175INTERCHANGEABLE
COIL,RADIO FREQUENCY
90304
7045-01-260-0242INTERCHANGEABLE
FILE,DISK,FLEXIBLE
DFT35/60
5325-01-721-3224INTERCHANGEABLE
RING,RETAINING
90304

Frequently Asked Questions

What is NSN 5310-01-197-4373?

NSN 5310-01-197-4373 is a Nut,retainer Assy, manufactured by Heintz Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-197-4373?

NSN 5310-01-197-4373 has 3 cross-referenced part numbers: 90304 (Heintz Corp), 33-43002-B-10 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), 90304 (Apex Precision Technologies, Inc.).

What NSN replaces 5310-01-197-4373?

There are 4 known substitutes for 5310-01-197-4373: 6625-00-316-9328, 5950-00-835-1175, 7045-01-260-0242 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90304?

Key specifications for 90304: General Characteristics Item Description: STEEL,ZINC PLATE,0.375-16 UNC 2B THREADED NUT,2.000 IN. LG,0.781 IN. W,0.045 IN. IN AND 0.050 IN. MAX PLATE THICKNESS IN. 1 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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