PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G321Grease,aircraft and Instrument

Momentive Performance Materials Inc. · NSN 9150-01-543-6963 · FSC 9150 · No Item Name Available
Verified by PartsTable
NSN 9150-01-543-6963 — this item is cataloged by the U.S. Government under National Stock Number 9150-01-543-6963. Primary manufacturer part number: G321.
Features
  • Grease,aircraft and Instrument — FSC 9150
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: Momentive Performance Materials Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Grease,aircraft and Instrument, cataloged under National Stock Number 9150-01-543-6963, is classified within Federal Supply Class 9150 (No Item Name Available) of the Fuels, Lubricants, Oils, and Waxes group. The primary manufacturer of record is Momentive Performance Materials Inc.. Government technical data includes 2 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9150-01-543-6963
Primary Part NumberG321
Item NameGrease,aircraft and Instrument
FSC / FSG9150 / 91 — No Item Name Available
ManufacturerMomentive Performance Materials Inc.
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6680-00-526-9354G321-4 INTERCHANGEABLE
No Item Name Available
Ldi Industries, Inc. Dba Ldi Industries Inc
4310-00-608-1146G321 INTERCHANGEABLE
Compressor Unit,reciprocating
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
6540-01-206-5933G-321 INTERCHANGEABLE
Light,slit,ophthalmic
Defense Medical Standardization Board
9150-01-228-3389MOLYKOTE 33 MEDIUM 3.5OZ INTERCHANGEABLE
Grease,aircraft and Instrument
Du Pont E I De Nemours and Co Inc Security Director/legal Dept
5340-01-517-9824G321 INTERCHANGEABLE
Bracket,mounting
W S Darley & Co Div Darley Pump Division
Cross-Reference Index
Part NumberManufacturer
G321 Momentive Performance Materials Inc. (USA)
G321 Novagard Solutions Inc (USA)
Related Parts
6680-00-526-9354INTERCHANGEABLE
NO ITEM NAME AVAILABLE
G321-4
4310-00-608-1146INTERCHANGEABLE
COMPRESSOR UNIT,RECIPROCATING
G321
6540-01-206-5933INTERCHANGEABLE
LIGHT,SLIT,OPHTHALMIC
G-321
9150-01-228-3389INTERCHANGEABLE
GREASE,AIRCRAFT AND INSTRUMENT
MOLYKOTE 33 MEDIUM 3.5OZ
5340-01-517-9824INTERCHANGEABLE
BRACKET,MOUNTING
G321

Frequently Asked Questions

What is NSN 9150-01-543-6963?

NSN 9150-01-543-6963 is a Grease,aircraft and Instrument, manufactured by Momentive Performance Materials Inc., classified under FSC 9150 (No Item Name Available). Status: active.

What are the part numbers for NSN 9150-01-543-6963?

NSN 9150-01-543-6963 has 2 cross-referenced part numbers: G321 (Momentive Performance Materials Inc.), G321 (Novagard Solutions Inc).

What NSN replaces 9150-01-543-6963?

There are 5 known substitutes for 9150-01-543-6963: 6680-00-526-9354, 4310-00-608-1146, 6540-01-206-5933 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G321?

Key specifications for G321: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATION; Criticality Code Justification: ZZZY. 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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