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190000 PIECE 10 — NUT,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

190000 PIECE 10: NUT,UNION.

The NUT,UNION is a the manufacturer industrial component. Key specifications include special_features: MATERIAL AND SPECIFICATION: NI-CU, QQ-N-281, end_item_identification: VALVE CHK ILN .50IPS 6000PSI SWLDG SSTL, criticality_code_justification: ZZZY, part_name_assigned_by_controlling_agency: UNION NUT, reference_number_differentiating_characteristics: QUALITY CONTROLLED IAW NAVY LEVEL1 ASSURANCE GUIDE, CLEANED IAW MIL-C-5221 1.. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-029-2965, 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
190000 PIECE 10
NSN: 4730-01-029-2965
NIINs: 010292965, 014429936, 015347899
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 97484 — EATON AEROSPACE LLC DIV FLUID AND ELECTRICAL DISTRIBUTION DIVISION (USA)
SPECIFICATIONS
special_featuresMATERIAL AND SPECIFICATION: NI-CU, QQ-N-281
end_item_identificationVALVE CHK ILN .50IPS 6000PSI SWLDG SSTL
criticality_code_justificationZZZY
part_name_assigned_by_controlling_agencyUNION NUT
reference_number_differentiating_characteristicsQUALITY CONTROLLED IAW NAVY LEVEL1 ASSURANCE GUIDE, CLEANED IAW MIL-C-5221 1.
NSN4730-01-029-2965
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 190000 PIECE 10 · 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: 2.000 INCHES NOMINAL IN
•
SHOULDER STEP WIDTH: 0.250 INCHES NOMINAL IN
•
SHOULDER WIDTH: 0.250 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CL B, COLD DRAWN FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.750 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.000 INCHES NOMINAL IN
SHOULDER STEP WIDTH0.250 INCHES NOMINAL IN
SHOULDER WIDTH0.250 INCHES NOMINAL IN
THREAD SERIESUN
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CL B, COLD DRAWN FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.750 INCHES IN
NONDEFINITIVE SPEC/STD DATA1/2 IN SIZE IN
NUT HEIGHT1.062 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 9
B-54152-08L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4760317-6008Reference document
Same NSN cross-reference
Reference document — Secondary reference
513-4683935 ITEM F29L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
190000 PIECE 10L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
B-54152-08Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
284852-0001 ITEM95L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 190000 PIECE 10?
190000 PIECE 10 is a NUT,UNION.
What parts can replace 190000 PIECE 10?
There are 9 known substitutes for 190000 PIECE 10: B-54152-08L1, 4760317-6008, 513-4683935 ITEM F29L1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 190000 PIECE 10?
190000 PIECE 10 is cataloged in the U.S. Government catalog under NSN 4730-01-029-2965. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.