PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2R53P21Grommet,nonmetallic

Lockheed Martin Corporation Div Rms · NSN 5325-00-275-7503 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-275-7503 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-275-7503. Primary manufacturer part number: 2R53P21.
Features
  • Grommet,nonmetallic — FSC 5325
  • Grommet Construction Type: SOLID
  • Hole Diameter: 0.312 INCHES NOMINAL IN
  • Material Document and Classification: A12A6C11 24446 MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
  • Flange Thickness: 0.094 INCHES NOMINAL IN
  • Groove Width: 0.094 INCHES NOMINAL IN
  • Nonmetallic Hardness Rating: 55.0 MINIMUM SHORE DUROMETER A AND 60.0 MAXIMUM SHORE DUROMETER A
  • Large Flange Outside Diameter: 0.562 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Grommet,nonmetallic, cataloged under National Stock Number 5325-00-275-7503, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-275-7503
Primary Part Number2R53P21
Item NameGrommet,nonmetallic
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Grommet Construction TypeSOLID
Hole Diameter0.312 INCHES NOMINAL IN
Material Document and ClassificationA12A6C11 24446 MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Flange Thickness0.094 INCHES NOMINAL IN
Groove Width0.094 INCHES NOMINAL IN
Nonmetallic Hardness Rating55.0 MINIMUM SHORE DUROMETER A AND 60.0 MAXIMUM SHORE DUROMETER A
Large Flange Outside Diameter0.562 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC OVERALL
Grommet StyleROUND
Groove Outside Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6510-00-111-07082132- INTERCHANGEABLE
Pad,nonadherent
Cardinal Health 200, Llc
5970-00-175-2736 INTERCHANGEABLE
Insulator,standoff
3020-00-185-9810 INTERCHANGEABLE
Pulley,timing Belt
4320-00-218-4635 INTERCHANGEABLE
Impeller,pump,centrifugal
4820-00-288-6678514-001-3/4IN INTERCHANGEABLE
Valve,check
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
2530-00-391-3995FE3434 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
2925-00-708-986224525 INTERCHANGEABLE
Adapter Connection,
Vse Aviation, Inc.
6605-00-872-49103434 INTERCHANGEABLE
Limit Stop
Lockheed Martin Corporation Div Rms
5935-00-917-5386 INTERCHANGEABLE
Connector,receptacle,electrical
6240-00-948-11087683 INTERCHANGEABLE
Lamp,incandescent
Lamptronix Co Ltd
Cross-Reference Index
Part NumberManufacturer
2R53P21 General Electric Company (USA)
3434 A.g.i. Rubber Company (USA)
3434 Canfield Rubber Co the (USA)
7716676P021 Lockheed Martin Corporation Div Rms (USA)
2R53P21 PRIMARY Lockheed Martin Corporation Div Rms (USA)
3H1632AG1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
7716676P21 General Electric Company (USA)
24525 Telephonics Corp/prd Instruments (USA)
B2R53PT21 General Electric Company (USA)
2R53P21 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
7716676P21 Lockheed Martin Corporation Div Rms (USA)
24525 Peraton Inc (USA)
Related Parts
6510-00-111-0708INTERCHANGEABLE
PAD,NONADHERENT
2132-
5970-00-175-2736INTERCHANGEABLE
INSULATOR,STANDOFF
3020-00-185-9810INTERCHANGEABLE
PULLEY,TIMING BELT
4320-00-218-4635INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
4820-00-288-6678INTERCHANGEABLE
VALVE,CHECK
514-001-3/4IN
2530-00-391-3995INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FE3434
2925-00-708-9862INTERCHANGEABLE
ADAPTER CONNECTION,
24525
6605-00-872-4910INTERCHANGEABLE
LIMIT STOP
3434
5935-00-917-5386INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6240-00-948-1108INTERCHANGEABLE
LAMP,INCANDESCENT
7683
5120-00-986-3434INTERCHANGEABLE
TIP,CONTACT INSERTION TOOL
395042
5950-01-098-7905INTERCHANGEABLE
REACTOR
13048933

Frequently Asked Questions

What is NSN 5325-00-275-7503?

NSN 5325-00-275-7503 is a Grommet,nonmetallic, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-275-7503?

NSN 5325-00-275-7503 has 12 cross-referenced part numbers: 2R53P21 (General Electric Company), 3434 (A.g.i. Rubber Company), 3434 (Canfield Rubber Co the), 7716676P021 (Lockheed Martin Corporation Div Rms), 2R53P21 (Lockheed Martin Corporation Div Rms) and 7 more.

What NSN replaces 5325-00-275-7503?

There are 12 known substitutes for 5325-00-275-7503: 6510-00-111-0708, 5970-00-175-2736, 3020-00-185-9810 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2R53P21?

Key specifications for 2R53P21: Grommet Construction Type: SOLID; Hole Diameter: 0.312 INCHES NOMINAL IN; Material Document and Classification: A12A6C11 24446 MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Flange Thickness: 0.094 INCHES NOMINAL IN. 11 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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