PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255SGenerator,ref Sig

Symmetricom Incs Analog Solutions Div · NSN 4920-01-129-8789 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-129-8789 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-129-8789. Primary manufacturer part number: 255S.
Features
  • Generator,ref Sig — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Symmetricom Incs Analog Solutions Div
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Generator,ref Sig, cataloged under National Stock Number 4920-01-129-8789, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Symmetricom Incs Analog Solutions Div. 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.

Catalog Facts
Item NameGenerator,ref Sig
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersSymmetricom Incs Analog Solutions Div (CAGE 17850)
Technical Specifications
ParameterValue
NSN4920-01-129-8789
Primary Part Number255S
Item NameGenerator,ref Sig
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerSymmetricom Incs Analog Solutions Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
9150-00-754-2760 INTERCHANGEABLE
Grease,utility
9150-01-111-32493460-80-1 INTERCHANGEABLE
Grease,special Purpose
King Nutronics Corporation Dba King Nutronics
Cross-Reference Index
Part NumberManufacturer
255S Symmetricom Incs Analog Solutions Div (USA)
Related Parts
9150-00-754-2760INTERCHANGEABLE
GREASE,UTILITY
9150-01-111-3249INTERCHANGEABLE
GREASE,SPECIAL PURPOSE
3460-80-1

Frequently Asked Questions

What is NSN 4920-01-129-8789?

NSN 4920-01-129-8789 is a Generator,ref Sig, manufactured by Symmetricom Incs Analog Solutions Div, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-129-8789?

NSN 4920-01-129-8789 has 1 cross-referenced part number: 255S (Symmetricom Incs Analog Solutions Div).

What NSN replaces 4920-01-129-8789?

There are 2 known substitutes for 4920-01-129-8789: 9150-00-754-2760, 9150-01-111-3249. Verify interchangeability with system specifications before substitution.

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