PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

764-5-6Ring,retaining

Flowserve Corporation Div Flowserve Us Inc · NSN 5325-01-258-1528 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-258-1528 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-258-1528. Primary manufacturer part number: 764-5-6.
Features
  • Ring,retaining — FSC 5325
  • 2 verified cross-references
  • Primary manufacturer: Flowserve Corporation Div Flowserve Us Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-258-1528, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,retaining
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersFlowserve Corporation Div Flowserve Us Inc (CAGE 85130)
Technical Specifications
ParameterValue
NSN5325-01-258-1528
Primary Part Number764-5-6
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5985-00-571-516576456 INTERCHANGEABLE
Waveguide Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
8030-00-980-3975 INTERCHANGEABLE
Primer,sealing Compound
5365-01-076-874876456 INTERCHANGEABLE
Spacer,sleeve
Cae Usa Inc.
5365-01-163-698276456 INTERCHANGEABLE
Spacer,plate
Triumph Engine Control Systems Llc
5305-01-345-0072 INTERCHANGEABLE
Setscrew
Cross-Reference Index
Part NumberManufacturer
764-5-6 PRIMARY Flowserve Corporation Div Flowserve Us Inc (USA)
764-5 PIECE 6 Flowserve Corporation Div Flowserve Us Inc (USA)
Related Parts
5985-00-571-5165INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
76456
8030-00-980-3975INTERCHANGEABLE
PRIMER,SEALING COMPOUND
5365-01-076-8748INTERCHANGEABLE
SPACER,SLEEVE
76456
5365-01-163-6982INTERCHANGEABLE
SPACER,PLATE
76456
5305-01-345-0072INTERCHANGEABLE
SETSCREW

Frequently Asked Questions

What is NSN 5325-01-258-1528?

NSN 5325-01-258-1528 is a Ring,retaining, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-258-1528?

NSN 5325-01-258-1528 has 2 cross-referenced part numbers: 764-5-6 (Flowserve Corporation Div Flowserve Us Inc), 764-5 PIECE 6 (Flowserve Corporation Div Flowserve Us Inc).

What NSN replaces 5325-01-258-1528?

There are 5 known substitutes for 5325-01-258-1528: 5985-00-571-5165, 8030-00-980-3975, 5365-01-076-8748 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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