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Technical Data Sheet
PartsTable / COMPONENT / 8258-3-4
8258-3-4 ✓ 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 CAP,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, connection_style: STREAMLINED WITH ONE BRAZING RING, special_features: SCHEDULE 80 PIPE, style_designator: CAP, nominal_pipe_size_for_which_designed: 0.750 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-080-2519, 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
8258-3-4
NSN: 4730-00-080-2519
FSC: 4730
CAGE: 27782 — PLASTILINE INC (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
connection_styleSTREAMLINED WITH ONE BRAZING RING
special_featuresSCHEDULE 80 PIPE
style_designatorCAP
nominal_pipe_size_for_which_designed0.750 INCHES IN
NSN4730-00-080-2519
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8258-3-4 · 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
•
STYLE DESIGNATOR: CAP
•
MATERIAL: PLASTIC OVERALL
•
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCAP
SPECIAL FEATURESSCHEDULE 80 PIPE
MATERIALPLASTIC OVERALL
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
503-S 57Interchangeable
interchangeable cross-reference
interchangeable
350-RTInterchangeable
interchangeable cross-reference
interchangeable
44127Interchangeable
interchangeable cross-reference
interchangeable
N13357Interchangeable
interchangeable cross-reference
interchangeable
1/2IN-ME-2 1335 7Interchangeable
interchangeable cross-reference
interchangeable
13357Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8258-3-4?
8258-3-4 is a CAP,PIPE.
What parts can replace 8258-3-4?
There are 13 known substitutes for 8258-3-4: 503-S 57, 350-RT, 44127 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8258-3-4?
8258-3-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-080-2519. 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