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Technical Data Sheet
PartsTable / COMPONENT / 273949PC11
273949PC11 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The CUP,OIL,LUBRICATING is a the manufacturer industrial component. Key specifications include angle: 90.0 DEGREES, height: 0.594 INCHES NOMINAL IN, length: 0.750 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, shank_length: 0.312 INCHES NOMINAL IN, thread_class: 4A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-9303, 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
273949PC11
NSN: 4730-00-289-9303
FSC: 4730
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
angle90.0 DEGREES
height0.594 INCHES NOMINAL IN
length0.750 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
shank_length0.312 INCHES NOMINAL IN
thread_class4A A
style_designatorANGLE, HINGED CAP
surface_treatmentNICKEL OVERALL
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
assembly_clearance_radius0.531 INCHES NOMINAL IN
nondefinitive_spec/std_dataH TYPE
NSN4730-00-289-9303
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 273949PC11 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD CLASS: 4A A
•
HEIGHT: 0.594 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
ANGLE: 90.0 DEGREES
•
THREAD QUANTITY PER INCH: 20
•
ASSEMBLY CLEARANCE RADIUS: 0.531 INCHES NOMINAL IN
•
SCREW THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS4A A
HEIGHT0.594 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.250 INCHES IN
ANGLE90.0 DEGREES
THREAD QUANTITY PER INCH20
ASSEMBLY CLEARANCE RADIUS0.531 INCHES NOMINAL IN
SCREW THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATAH TYPE
DEPARTURE FROM CITED DOCUMENTASNMODIFIED BY SURFACE TREATMENT AND THREAD SIZE,SERIES AND CLASS OF FIT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
Q2421Interchangeable
interchangeable cross-reference
interchangeable
X-2054Interchangeable
interchangeable cross-reference
interchangeable
MILC1258Interchangeable
interchangeable cross-reference
interchangeable
600B-1Interchangeable
interchangeable cross-reference
interchangeable
1300-1Interchangeable
interchangeable cross-reference
interchangeable
1157K21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 273949PC11?
273949PC11 is a CUP,OIL,LUBRICATING.
What parts can replace 273949PC11?
There are 16 known substitutes for 273949PC11: Q2421, X-2054, MILC1258 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 273949PC11?
273949PC11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-9303. 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