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Technical Data Sheet
PartsTable / COMPONENT / 1158-5D
1158-5D ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 0.672 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, special_features: GRUMMAN A-10 AIRCRAFT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-0292, 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
1158-5D
NSN: 4730-00-287-0292
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height0.672 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
special_featuresGRUMMAN A-10 AIRCRAFT
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
length_to_shoulder0.579 INCHES NOMINAL IN
width_across_flats0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
smallest_inside_diameter0.374 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
NSN4730-00-287-0292
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1158-5D · 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
•
WIDTH ACROSS FLATS: 0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD CLASS: 3B
•
NUT HEIGHT: 0.672 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.312 INCHES IN
•
LENGTH TO SHOULDER: 0.579 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD CLASS3B
NUT HEIGHT0.672 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
NOMINAL TUBE OUTSIDE DIAMETER0.312 INCHES IN
SPECIAL FEATURESGRUMMAN A-10 AIRCRAFT
LENGTH TO SHOULDER0.579 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
A5000Interchangeable
interchangeable cross-reference
interchangeable
122-6722635 PC 37Interchangeable
interchangeable cross-reference
interchangeable
191758Interchangeable
interchangeable cross-reference
interchangeable
50419Interchangeable
interchangeable cross-reference
interchangeable
X03386Interchangeable
interchangeable cross-reference
interchangeable
X3386Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1158-5D?
1158-5D is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 1158-5D?
There are 17 known substitutes for 1158-5D: A5000, 122-6722635 PC 37, 191758 and 14 more. Substitute compatibility should be verified for your specific system.
Is 1158-5D still available?
1158-5D is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026