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Technical Data Sheet
PartsTable / COMPONENT / 5403-12
5403-12 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

INSERT AND TOOL SET,SCREW THREAD. Key specifications include document_type: CATALOG SHEET, document_source: 03018, component_quantity: 22, end_item_identification: 3470-01-575-2955 SHOP EQUIPMENT,MACHINE SHOP, component_document_origin: INDUSTRIAL, part_name_assigned_by_controlling_agency: INSERT AND TOOL SET,SCREW THREAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-218-1580, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
5403-12
NSN: 5340-01-218-1580
FSC: 5340
CAGE: 26344 — NEW HAVEN MFG CORP (USA)
SPECIFICATIONS
document_typeCATALOG SHEET
document_source03018
component_quantity22
end_item_identification3470-01-575-2955 SHOP EQUIPMENT,MACHINE SHOP
component_document_originINDUSTRIAL
supply_items_and_quantities12EA SCREW THREAD INSERTS M12X1.75 LENGTH 12MM,18MM,24MM-DRILL-HIGH SPE ED TAP-INSTALLATION TOOL,TANG BREAKOFF TOOL,PLASTIC CASE MM
part_name_assigned_by_controlling_agencyINSERT AND TOOL SET,SCREW THREAD
NSN5340-01-218-1580
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5403-12 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
END ITEM NAME: MECHANICAL MAIN
•
DOCUMENT TYPE: TECHNICAL BULLETIN
•
COMPONENT DOCUMENT PAGE NUMBER: 19
•
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
•
END ITEM SOURCE: 19204
•
COMPONENT QUANTITY: 12
•
DOCUMENT SOURCE: 26344
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM NAMEMECHANICAL MAIN
DOCUMENT TYPETECHNICAL BULLETIN
COMPONENT DOCUMENT PAGE NUMBER19
END ITEM IDENTIFICATION4940-00-209-6227
COMPONENT DOCUMENT ORIGININDUSTRIAL
END ITEM SOURCE19204
COMPONENT QUANTITY12
DOCUMENT SOURCE26344
DOCUMENT IDENTIFICATIONBULLETIN 1000
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
11B5090739-28Upgraded Successor
successor cross-reference
successor
11B5090739Upgraded Successor
successor cross-reference
successor
5403-12Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5403-12?
5403-12 is a INSERT AND TOOL SET,SCREW THREAD.
What parts can replace 5403-12?
There are 3 known substitutes for 5403-12: 11B5090739-28, 11B5090739, 5403-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 5403-12?
5403-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-218-1580. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026