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12438 — ADAPTER,CONNECTOR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12438: ADAPTER,CONNECTOR.

The ADAPTER,CONNECTOR is a the manufacturer industrial component. Key specifications include material: LEATHER OVERALL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, shell_type: SOLID, thread_class: 2A A, overall_length: 2.190 INCHES NOMINAL IN, shell_material: STEEL CORROSION RESISTING. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-251-0483, 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
12438
NSN: 5340-00-251-0483
NIINs: 002510483, 011137638, 011651334, 015379993
FSC: 5340 — Hardware, Commercial
CAGE: 16859 — CRANE CO DBA CRANE-DEMING PUMPS DIVISION DIV DEMING PUMPS (USA)
SPECIFICATIONS
materialLEATHER OVERALL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
shell_typeSOLID
thread_class2A A
overall_length2.190 INCHES NOMINAL IN
shell_materialSTEEL CORROSION RESISTING
insert_materialPLASTIC ALL MATING ENDS
contact_materialCOPPER ALLOY ALL MATING ENDS SINGLE CONTACT GROUPING
overall_diameter2.120 INCHES NOMINAL IN
thread_directionRIGHT-HAND
feather_edge_angle45.0 DEGREES NOMINAL
mating_end_quantity2
NSN5340-00-251-0483
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12438 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
•
FEATHER EDGE ANGLE: 45.0 DEGREES NOMINAL
•
CENTER HOLE DIAMETER: 0.563 INCHES NOMINAL IN
•
BASE MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
MATERIAL: LEATHER OVERALL
•
RECESS INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FEATHER EDGE ANGLE45.0 DEGREES NOMINAL
OVERALL LENGTH0.500 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.563 INCHES NOMINAL IN
BASE MATERIAL THICKNESS0.094 INCHES NOMINAL IN
MATERIALLEATHER OVERALL
RECESS INSIDE DIAMETER1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
12438TReference document
Same NSN cross-reference
Reference document — Secondary reference
J4268 1-2PC26Reference document
Same NSN cross-reference
Reference document — Secondary reference
J4250 1-2PC26Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12438?
12438 is a ADAPTER,CONNECTOR.
What parts can replace 12438?
There are 3 known substitutes for 12438: 12438T, J4268 1-2PC26, J4250 1-2PC26. Substitute compatibility should be verified for your specific system.
What is the NSN for 12438?
12438 is cataloged in the U.S. Government catalog under NSN 5340-00-251-0483. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.