PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1921-SFitting,lubrication

Stewart Warner Alemite Corp · NSN 4730-01-688-4956 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-688-4956 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-688-4956. Primary manufacturer part number: 1921-S.
Features
  • Fitting,lubrication — FSC 4730
  • Angle: 30.0 DEGREES
  • Style Designator: ANGLE
  • Material: STEEL OVERALL
  • Media for Which Designed: GREASE
  • Surface Treatment: PASSIVATE OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Stewart Warner Alemite Corp
Applications
  • Applications requiring Steel Overall construction
General Description

The Fitting,lubrication, cataloged under National Stock Number 4730-01-688-4956, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Stewart Warner Alemite Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-688-4956
Primary Part Number1921-S
Item NameFitting,lubrication
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerStewart Warner Alemite Corp
StatusACTIVE
Angle30.0 DEGREES
Style DesignatorANGLE
MaterialSTEEL OVERALL
Media for Which DesignedGREASE
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4320-00-334-377927273 INTERCHANGEABLE
Shaft,reel
Dresser Industries Inc Leroi Div
3020-00-434-689727370 INTERCHANGEABLE
Gear,spur
Honeywell International Inc. Div Aerospace - Torrance
3020-00-594-5102MPS4217 INTERCHANGEABLE
Gear,transfer Case
Meritor Heavy Vehicle Systems, Llc
2805-00-847-66942406774 INTERCHANGEABLE
Valve,poppet,engine
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-849-0987415733SSR INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5905-01-227-7568 INTERCHANGEABLE
Resistor,fixed,film
5120-01-727-823027370 INTERCHANGEABLE
Screwdriver,cross Tip
Mayhew Steel Products Inc
Cross-Reference Index
Part NumberManufacturer
1921-S PRIMARY Stewart Warner Alemite Corp (USA)
27370 Allied Systems Company Dba Allied Systems Co (USA)
Related Parts
4320-00-334-3779INTERCHANGEABLE
SHAFT,REEL
27273
3020-00-434-6897INTERCHANGEABLE
GEAR,SPUR
27370
3020-00-594-5102INTERCHANGEABLE
GEAR,TRANSFER CASE
MPS4217
2805-00-847-6694INTERCHANGEABLE
VALVE,POPPET,ENGINE
2406774
5330-00-849-0987INTERCHANGEABLE
SEAL,PLAIN ENCASED
415733SSR
5905-01-227-7568INTERCHANGEABLE
RESISTOR,FIXED,FILM
5120-01-727-8230INTERCHANGEABLE
SCREWDRIVER,CROSS TIP
27370

Frequently Asked Questions

What is NSN 4730-01-688-4956?

NSN 4730-01-688-4956 is a Fitting,lubrication, manufactured by Stewart Warner Alemite Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-688-4956?

NSN 4730-01-688-4956 has 2 cross-referenced part numbers: 1921-S (Stewart Warner Alemite Corp), 27370 (Allied Systems Company Dba Allied Systems Co).

What NSN replaces 4730-01-688-4956?

There are 7 known substitutes for 4730-01-688-4956: 4320-00-334-3779, 3020-00-434-6897, 3020-00-594-5102 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1921-S?

Key specifications for 1921-S: Part Name Assigned by Controlling Agency: FITTING,LUBRICATION 30 DEGREES; End Item Identification: REEVING ASSEBLY; Angle: 30.0 DEGREES; Style Designator: ANGLE. 7 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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