PartsTable
Technical Data Sheet
Download PDF

041383AC — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

041383AC: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thread_size: 1/2-20, overall_length: 1.380 INCHES NOMINAL IN, special_features: ASDIFFERENTIATED BY REQUIREMENT FOR SPECIAL CLEANING AND PACKAGING FOR OXYGEN AND NITROGEN SERVICE, style_designator: HEXAGON, EXTERNAL THREAD, INVERTED FLARE, seat_angle_in_deg: 45.0. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-412-8148, 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
041383AC
NSN: 4730-01-412-8148
NIINs: 014128148, 014134628, 014950923, 016407669
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 99565 — ADMIRAL VALVE LLC DBA CPV MANUFACTURING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thread_size1/2-20
overall_length1.380 INCHES NOMINAL IN
special_featuresASDIFFERENTIATED BY REQUIREMENT FOR SPECIAL CLEANING AND PACKAGING FOR OXYGEN AND NITROGEN SERVICE
style_designatorHEXAGON, EXTERNAL THREAD, INVERTED FLARE
seat_angle_in_deg45.0
width_across_flats1.250 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationREPAIR PART FOR 6000 PSI O-SEAL VALVES
criticality_code_justificationZZZY
NSN4730-01-412-8148
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 041383AC · 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 SIZE: 1/2-20
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
THREAD SIZE1/2-20
END ITEM IDENTIFICATIONREPAIR PART FOR 6000 PSI O-SEAL VALVES
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
C-4374/PL4337 NO. 7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 041383AC?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 041383AC?
041383AC is a PACKING NUT.
What parts can replace 041383AC?
There is 1 known substitute for 041383AC: C-4374/PL4337 NO. 7. Substitute compatibility should be verified for your specific system.
What is the NSN for 041383AC?
041383AC is cataloged in the U.S. Government catalog under NSN 4730-01-412-8148. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 041383AC

✓ 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.