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4157 — GREASE,LABORATORY APPARATUS STOP

✓ Government record, cited
Giochi Preziosi · MRO · MRO_GENERAL
PRODUCT OVERVIEW

4157: GREASE,LABORATORY APPARATUS STOP.

GREASE,LABORATORY APPARATUS STOP. Key specifications include material: STEEL COMP 303 OVERALL, head_height: 0.250 INCHES NOMINAL IN, head_diameter: 0.750 INCHES NOMINAL IN, fastener_length: 1.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_item_identification: UNDERWATER COMBAT SYSTEM, H AND SQOK410VISOR UNICORP. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-097-9815, 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
MRO→ MRO_GENERAL→ 4157
NSN: 4730-00-097-9815
NIINs: 000979815, 003498169, 004890604, 010146218, 011204112, 012049851, 012271152, 012545258, 012732246, 012802534, 013792336
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_height0.250 INCHES NOMINAL IN
head_diameter0.750 INCHES NOMINAL IN
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
end_item_identificationUNDERWATER COMBAT SYSTEM, H AND SQOK410VISOR UNICORP
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN4730-00-097-9815
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4157 · Giochi Preziosi ⚠ 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
SUBSTITUTES & CROSS-REFERENCES 4
72136Reference document
Same NSN cross-reference
Reference document — Secondary reference
4730000979815Reference document
Same NSN cross-reference
Reference document — Informative reference only
9417501Reference document
Same NSN cross-reference
Reference document — Secondary reference
IPD7S9826Reference 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 4157?
4157 is a GREASE,LABORATORY APPARATUS STOP manufactured by Giochi Preziosi. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4157?
There are 4 known substitutes for 4157: 72136, 4730000979815, 9417501 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4157?
4157 is cataloged in the U.S. Government catalog under NSN 4730-00-097-9815. This indicates validated use in U.S. government and defense supply chains.
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