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845-2181284PC16ASSYA1-2IN — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

845-2181284PC16ASSYA1-2IN: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thread_size: 0.750-20, thread_class: 2B, thread_length: 0.375 INCHES NOMINAL IN, overall_length: 0.469 INCHES NOMINAL IN, special_features: W/TWO 0.094 IN. W BY 0.062 IN.

DP SLOTS 180 DEG APART ON TOP OF NUT IN. This part is cataloged in the U.S. Government catalog under NSN 4730-01-067-9923, 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
845-2181284PC16ASSYA1-2IN
NSN: 4730-01-067-9923
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thread_size0.750-20
thread_class2B
thread_length0.375 INCHES NOMINAL IN
overall_length0.469 INCHES NOMINAL IN
special_featuresW/TWO 0.094 IN. W BY 0.062 IN. DP SLOTS 180 DEG APART ON TOP OF NUT IN
style_designatorHEXAGON, INTERNAL THREAD, SHOULDERED
thread_directionRIGHT-HAND
length_to_shoulder0.375 INCHES NOMINAL IN
width_across_flats0.938 INCHES NOMINAL IN
screw_thread_locationINTERNAL
casehardening_indicatorNOT CASEHARDENED
NSN4730-01-067-9923
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 845-2181284PC16ASSYA1-2IN · 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
•
LENGTH TO SHOULDER: 0.375 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.938 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: HEXAGON, INTERNAL THREAD, SHOULDERED
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 0.750-20
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.375 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.938 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL IN
STYLE DESIGNATORHEXAGON, INTERNAL THREAD, SHOULDERED
OVERALL LENGTH0.469 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE0.750-20
SPECIAL FEATURESW/TWO 0.094 IN. W BY 0.062 IN. DP SLOTS 180 DEG APART ON TOP OF NUT IN
SCREW THREAD SERIES DESIGNATORUNEF
SUBSTITUTES & CROSS-REFERENCES 2
SS845-2181284Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
2620-925X4PC16ASSYA1-2INReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 845-2181284PC16ASSYA1-2IN?
845-2181284PC16ASSYA1-2IN is a PACKING NUT.
What parts can replace 845-2181284PC16ASSYA1-2IN?
There are 2 known substitutes for 845-2181284PC16ASSYA1-2IN: SS845-2181284, 2620-925X4PC16ASSYA1-2IN. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-2181284PC16ASSYA1-2IN?
845-2181284PC16ASSYA1-2IN is cataloged in the U.S. Government catalog under NSN 4730-01-067-9923. 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.