PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T21Pump Seal Assembly

Buffaloes Fire Pump Inc. Dba R B Pump Co · NSN 5330-01-325-1220 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-325-1220 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-325-1220. Primary manufacturer part number: T21.
Features
  • Pump Seal Assembly — FSC 5330
  • 3 verified cross-references
  • Primary manufacturer: Buffaloes Fire Pump Inc. Dba R B Pump Co
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
General Description

The Pump Seal Assembly, cataloged under National Stock Number 5330-01-325-1220, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Buffaloes Fire Pump Inc. Dba R B Pump Co. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePump Seal Assembly
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersZf Industrieantriebe Witten Gmbh (CAGE D9182); Buffaloes Fire Pump Inc. Dba R B Pump Co (CAGE 62503)
Technical Specifications
ParameterValue
NSN5330-01-325-1220
Primary Part NumberT21
Item NamePump Seal Assembly
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerBuffaloes Fire Pump Inc. Dba R B Pump Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3010-00-051-1503T2-1 INTERCHANGEABLE
Coupling,shaft,flexible
Roller Bearing Co of America, Inc Div Pic Design
5930-00-117-807159-T-58 INTERCHANGEABLE
Switch,thermostatic
Universal Engine Heater Co.
3910-00-757-4376T21 INTERCHANGEABLE
Mandrel Tool
Standard Pneumatic Systems Inc
5345-01-036-895708834181747 INTERCHANGEABLE
Abrasive Roll
Saint-Gobain Abrasives Inc
5950-01-106-1218T2-1 INTERCHANGEABLE
Transformer,radio Frequency
Scientific Components Corp Dba Mini-Circuits
5330-01-320-343421-112-04 INTERCHANGEABLE
Seal,plain
Flowserve Pump Corporation Div Fluid Sealing Division
5130-01-421-0691T21 INTERCHANGEABLE
Rivet Set,blank,pneumatic Tool
Taumel Noiseless Riveters
6675-01-573-7161T2-1 INTERCHANGEABLE
Theodolite,surveying
Lockheed Martin Corporation
5120-01-577-7890T-21 INTERCHANGEABLE
Driver,armature Wedge
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
3110-01-648-7183T21 INTERCHANGEABLE
Bearing,ball,airframe
Textron Aviation Inc
Cross-Reference Index
Part NumberManufacturer
21-112-04 Zf Industrieantriebe Witten Gmbh (DEU)
T21 PRIMARY Buffaloes Fire Pump Inc. Dba R B Pump Co (USA)
925-07665 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
3010-00-051-1503INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
T2-1
5930-00-117-8071INTERCHANGEABLE
SWITCH,THERMOSTATIC
59-T-58
3910-00-757-4376INTERCHANGEABLE
MANDREL TOOL
T21
5345-01-036-8957INTERCHANGEABLE
ABRASIVE ROLL
08834181747
5950-01-106-1218INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
T2-1
5330-01-320-3434INTERCHANGEABLE
SEAL,PLAIN
21-112-04
5130-01-421-0691INTERCHANGEABLE
RIVET SET,BLANK,PNEUMATIC TOOL
T21
6675-01-573-7161INTERCHANGEABLE
THEODOLITE,SURVEYING
T2-1
5120-01-577-7890INTERCHANGEABLE
DRIVER,ARMATURE WEDGE
T-21
3110-01-648-7183INTERCHANGEABLE
BEARING,BALL,AIRFRAME
T21

Frequently Asked Questions

What is NSN 5330-01-325-1220?

NSN 5330-01-325-1220 is a Pump Seal Assembly, manufactured by Buffaloes Fire Pump Inc. Dba R B Pump Co, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-325-1220?

NSN 5330-01-325-1220 has 3 cross-referenced part numbers: 21-112-04 (Zf Industrieantriebe Witten Gmbh), T21 (Buffaloes Fire Pump Inc. Dba R B Pump Co), 925-07665 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5330-01-325-1220?

There are 10 known substitutes for 5330-01-325-1220: 3010-00-051-1503, 5930-00-117-8071, 3910-00-757-4376 and 7 more. Verify interchangeability with system specifications before substitution.

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