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Technical Data Sheet
PartsTable / COMPONENT / 838-251
838-251 ✓ 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 REDUCER,PIPE is a the manufacturer industrial component. Key specifications include overall_width: 27.000 INCHES NOMINAL IN, current_rating: 14.000 AMPERES, overall_height: 26.620 INCHES NOMINAL IN, overall_length: 29.060 INCHES NOMINAL IN, features_provided: ELECTROSTATIC SENSITIVE, unpackaged_unit_weight: 200.000 POUNDS LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-243-7441, 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
838-251
NSN: 4730-00-243-7441
FSC: 4730
CAGE: 96405 — LASCO INDUSTRIES (USA)
SPECIFICATIONS
overall_width27.000 INCHES NOMINAL IN
current_rating14.000 AMPERES
overall_height26.620 INCHES NOMINAL IN
overall_length29.060 INCHES NOMINAL IN
special_featuresFEED AIR COMPRESSOR OF POGS 33C SYSTEM; ELECTRICAL: 208 - 240 V, 60 HZ, 3 PHASE; OUTPUT (SEA LEVEL): 14.7 SCFH AT 100 PSIG V
features_providedELECTROSTATIC SENSITIVE
unpackaged_unit_weight200.000 POUNDS LBS
end_item_identificationAN/UYQ-87(P) MONITORING WORK STATION,TRIDENT,EC-U7110
part_name_assigned_by_controlling_agency(INAVY) PROGRAMMABLE AMP/FL
NSN4730-00-243-7441
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 838-251 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
D15-790VPC642-643Interchangeable
interchangeable cross-reference
interchangeable
D15-494KPC695-696Interchangeable
interchangeable cross-reference
interchangeable
D15-646CPC642-643Interchangeable
interchangeable cross-reference
interchangeable
1644Interchangeable
interchangeable cross-reference
interchangeable
9743-B-0632-37Interchangeable
interchangeable cross-reference
interchangeable
8254Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 838-251?
838-251 is a REDUCER,PIPE.
What parts can replace 838-251?
There are 15 known substitutes for 838-251: D15-790VPC642-643, D15-494KPC695-696, D15-646CPC642-643 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 838-251?
838-251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-243-7441. 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