PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21691Ring,cam

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5365-00-127-5066 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-127-5066 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-127-5066. Primary manufacturer part number: 21691.
Features
  • Ring,cam — FSC 5365
  • General Characteristics Item Description: STEEL,2.750 IN. OD,IRREGULAR SHAPED 1.750 IN. TO 2.125 IN. ID,0.750 IN. THICK,2 HOLES 180 DEG APART,ONE HOLE UNTHD,ONE HOLE THD 0.375 @-20 UN RH THD IN
  • 3 verified cross-references
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,cam, cataloged under National Stock Number 5365-00-127-5066, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5365-00-127-5066
Primary Part Number21691
Item NameRing,cam
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
General Characteristics Item DescriptionSTEEL,2.750 IN. OD,IRREGULAR SHAPED 1.750 IN. TO 2.125 IN. ID,0.750 IN. THICK,2 HOLES 180 DEG APART,ONE HOLE UNTHD,ONE HOLE THD 0.375 @-20 UN RH THD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-054-6670 INTERCHANGEABLE
Screw,machine
5998-00-234-18042169-1 INTERCHANGEABLE
Circuit Card Assembly
Mission Systems Davenport Inc.
5999-00-481-5513 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5305-00-543-2785 INTERCHANGEABLE
Screw,machine
2530-00-734-9235921729 INTERCHANGEABLE
Shaft Pitman Asy
Chrysler Realty Company Llc Dba Daimler Chrysler
4320-00-922-019421691 INTERCHANGEABLE
Pump Clutch Assembl
Industrial Technologies and Services Llc
3020-01-089-3040 INTERCHANGEABLE
Chain,ladder
5330-01-395-360717086 INTERCHANGEABLE
Seal,plain Encased
Karl Senner, L.l.c. Dba Karl Senner Inc
5360-01-487-582417086 INTERCHANGEABLE
Spring,helical,torsion
B&g Lieberman Co Inc
6515-01-590-0869202.220 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
17086 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
21691 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
17086 Eagle Machine Co Inc (USA)
Related Parts
5305-00-054-6670INTERCHANGEABLE
SCREW,MACHINE
5998-00-234-1804INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2169-1
5999-00-481-5513INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5305-00-543-2785INTERCHANGEABLE
SCREW,MACHINE
2530-00-734-9235INTERCHANGEABLE
SHAFT PITMAN ASY
921729
4320-00-922-0194INTERCHANGEABLE
PUMP CLUTCH ASSEMBL
21691
3020-01-089-3040INTERCHANGEABLE
CHAIN,LADDER
5330-01-395-3607INTERCHANGEABLE
SEAL,PLAIN ENCASED
17086
5360-01-487-5824INTERCHANGEABLE
SPRING,HELICAL,TORSION
17086
6515-01-590-0869INTERCHANGEABLE
SCREW,BONE
202.220
6545-01-595-5267INTERCHANGEABLE
KIT,CHEST TUBE,DEPLOYABLE
2160-20500
5330-01-601-6040INTERCHANGEABLE
RETAINER,PACKING
1708-6

Frequently Asked Questions

What is NSN 5365-00-127-5066?

NSN 5365-00-127-5066 is a Ring,cam, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-127-5066?

NSN 5365-00-127-5066 has 3 cross-referenced part numbers: 17086 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 21691 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 17086 (Eagle Machine Co Inc).

What NSN replaces 5365-00-127-5066?

There are 12 known substitutes for 5365-00-127-5066: 5305-00-054-6670, 5998-00-234-1804, 5999-00-481-5513 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21691?

Key specifications for 21691: General Characteristics Item Description: STEEL,2.750 IN. OD,IRREGULAR SHAPED 1.750 IN. TO 2.125 IN. ID,0.750 IN. THICK,2 HOLES 180 DEG APART,ONE HOLE UNTHD,ONE HOLE THD 0.375 @-20 UN RH THD 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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