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Technical Data Sheet
6273A ✓ 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

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 3.125 INCHES NOMINAL IN, diameter: 0.535 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN, material: STEEL COMP 303 OVERALL, thread_length: 0.625 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, special_features: 0.340 IN. DIA I.D.

THRU-HOLE IN, style_designator: LEFT INTERNAL 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 5340-00-837-0507, 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
6273A
NSN: 5340-00-837-0507
FSC: 5340
CAGE: 82205 — BELFORT INSTRUMENT COMPANY (USA)
SPECIFICATIONS
length3.125 INCHES NOMINAL IN
diameter0.535 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN
materialSTEEL COMP 303 OVERALL
thread_length0.625 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
special_features0.340 IN. DIA I.D. THRU-HOLE IN
style_designatorLEFT INTERNAL THREAD
cross-sectional_shapeROUND
material_document_and_classificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5340-00-837-0507
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6273A 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
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: STEEL COMP 303 OVERALL
STYLE DESIGNATOR: LEFT INTERNAL THREAD
LENGTH: 3.125 INCHES NOMINAL IN
DIAMETER: 0.535 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE: ROUND
THREAD LENGTH: 0.625 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES0.340 IN. DIA I.D. THRU-HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
STYLE DESIGNATORLEFT INTERNAL THREAD
LENGTH3.125 INCHES NOMINAL IN
DIAMETER0.535 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND
THREAD LENGTH0.625 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6273Upgraded Successor
successor cross-reference
successor
B201K1CAUpgraded Successor
successor cross-reference
successor
GT-111AInterchangeable
interchangeable cross-reference
interchangeable
5995Interchangeable
interchangeable cross-reference
interchangeable
N17594Interchangeable
interchangeable cross-reference
interchangeable
9108186Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6273A?
6273A is a STANDOFF,THREADED,SPACING.
What parts can replace 6273A?
There are 12 known substitutes for 6273A: 6273, B201K1CA, GT-111A and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6273A?
6273A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-837-0507. This indicates validated use in U.S. government and defense supply chains.
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