PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56691Ring,retaining

Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools · NSN 5325-01-678-3164 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-678-3164 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-678-3164. Primary manufacturer part number: 56691.
Features
  • Ring,retaining — FSC 5325
  • 1 verified cross-reference
  • Primary manufacturer: Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-678-3164, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-678-3164
Primary Part Number56691
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerStanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-287-1707SAE J512 4-4-4 040401BA INTERCHANGEABLE
Tee,tube
Sae International Dba Sae International
5325-00-990-32325669-1 INTERCHANGEABLE
Ring,retaining
Goodrich Aerospace Canada Ltd
Cross-Reference Index
Part NumberManufacturer
56691 PRIMARY Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools (USA)
Related Parts
4730-00-287-1707INTERCHANGEABLE
TEE,TUBE
SAE J512 4-4-4 040401BA
5325-00-990-3232INTERCHANGEABLE
RING,RETAINING
5669-1

Frequently Asked Questions

What is NSN 5325-01-678-3164?

NSN 5325-01-678-3164 is a Ring,retaining, manufactured by Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-678-3164?

NSN 5325-01-678-3164 has 1 cross-referenced part number: 56691 (Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools).

What NSN replaces 5325-01-678-3164?

There are 2 known substitutes for 5325-01-678-3164: 4730-00-287-1707, 5325-00-990-3232. Verify interchangeability with system specifications before substitution.

What are the specifications of 56691?

Key specifications for 56691: Part Name Assigned by Controlling Agency: INLET RING; End Item Identification: 016691345,ENGINE AND BLOWER. 2 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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