PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21270APacking Assembly

H20 Tank Inc U S Motors Div · NSN 5330-00-362-8456 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-362-8456 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-362-8456. Primary manufacturer part number: 21270A.
Features
  • Packing Assembly — FSC 5330
  • Material: ASBESTOS AND GRAPHITE BOTTOM RING
  • Inside Diameter: 0.750 INCHES NOMINAL IN
  • Height: 0.938 INCHES NOMINAL IN
  • Intermediate Ring Quantity: 3
  • Material: ASBESTOS AND GRAPHITE INTERMEDIATE RING
  • Outside Diameter: 1.125 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: ANGLE BOTTOM RING
Applications
  • Applications requiring Asbestos and Graphite Bottom Ring construction
General Description

The Packing Assembly, cataloged under National Stock Number 5330-00-362-8456, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is H20 Tank Inc U S Motors Div. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-362-8456
Primary Part Number21270A
Item NamePacking Assembly
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerH20 Tank Inc U S Motors Div
StatusCANCELLED
MaterialASBESTOS AND GRAPHITE BOTTOM RING
Inside Diameter0.750 INCHES NOMINAL IN
Height0.938 INCHES NOMINAL IN
Intermediate Ring Quantity3
MaterialASBESTOS AND GRAPHITE INTERMEDIATE RING
Outside Diameter1.125 INCHES NOMINAL IN
Cross-Sectional Shape StyleANGLE BOTTOM RING
MaterialASBESTOS AND GRAPHITE TOP RING
Cross-Sectional Shape StyleANGLE TOP RING
Cross-Sectional Shape StyleSQUARE/RECTANGULAR INTERMEDIATE RING
Cut TypeDIAGONAL INTERMEDIATE RING
Cut TypeDIAGONAL TOP RING
Joint TypeSCARF-PERIPHERAL TOP RING
Cut TypeDIAGONAL BOTTOM RING
Joint TypeSCARF-PERIPHERAL BOTTOM RING
Joint TypeSCARF-PERIPHERAL INTERMEDIATE RING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5340-00-577-9051PK121 INTERCHANGEABLE
Retainer,helical Compression Spr
Wisconsin Motors, Llc
5935-01-047-16311-87175-3 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation
5365-01-725-4864C-7416 INTERCHANGEABLE
Spacer,plate
Hartzell Propeller Llc
Cross-Reference Index
Part NumberManufacturer
239 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
1A9736 Napco International Llc Dba Napco International Inc (USA)
PK121 Mcquay-Norris Inc Oem Div an Skf Industries Co
C7416 Schwitzer Engine Components a Household Intl Co (USA)
21270A Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
21270A Clark Equipment Co (USA)
21270A O K Machinery Div of Motter John C Printing Press Co (USA)
PK121 Eaton Corp Dba Eaton Aerospace Jackson (USA)
21270A Dana Off Highway Products, Llc (USA)
21270A PRIMARY H20 Tank Inc U S Motors Div (USA)
21270A Clark Material Handling Company (USA)
21270A Scott Huber Essick a Co of Figgie International Inc (USA)
Related Parts
5340-00-577-9051INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
PK121
5935-01-047-1631INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1-87175-3
5365-01-725-4864INTERCHANGEABLE
SPACER,PLATE
C-7416

Frequently Asked Questions

What is NSN 5330-00-362-8456?

NSN 5330-00-362-8456 is a Packing Assembly, manufactured by H20 Tank Inc U S Motors Div, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-362-8456?

NSN 5330-00-362-8456 has 12 cross-referenced part numbers: 239 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 1A9736 (Napco International Llc Dba Napco International Inc), PK121 (Mcquay-Norris Inc Oem Div an Skf Industries Co), C7416 (Schwitzer Engine Components a Household Intl Co), 21270A (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc) and 7 more.

What NSN replaces 5330-00-362-8456?

There are 3 known substitutes for 5330-00-362-8456: 5340-00-577-9051, 5935-01-047-1631, 5365-01-725-4864. Verify interchangeability with system specifications before substitution.

What are the specifications of 21270A?

Key specifications for 21270A: Material: ASBESTOS AND GRAPHITE BOTTOM RING; Inside Diameter: 0.750 INCHES NOMINAL IN; Height: 0.938 INCHES NOMINAL IN; Intermediate Ring Quantity: 3. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-362-8456 still in active supply?

NSN 5330-00-362-8456 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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