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Technical Data Sheet
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851-030 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

851-030: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include end_item_identification: HOWITZER, 155MM, M777E1 MM. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-244-6054, 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
851-030
NSN: 4730-01-244-6054
NIINs: 012446054, 015768896
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14007 — NIBCO INC (USA)
SPECIFICATIONS
end_item_identificationHOWITZER, 155MM, M777E1 MM
NSN4730-01-244-6054
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 851-030 · 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
•
FLANGE DIAMETER: 7.500 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 3.000 INCHES IN
•
FLANGE SECTION STYLE: RECESSED FACE, RAISED NECK
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STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.625 INCHES NOMINAL IN
•
NECK HEIGHT: 1.203 INCHES NOMINAL IN
•
RECESS DEPTH: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER7.500 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED3.000 INCHES IN
FLANGE SECTION STYLERECESSED FACE, RAISED NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.625 INCHES NOMINAL IN
NECK HEIGHT1.203 INCHES NOMINAL IN
RECESS DEPTH0.156 INCHES NOMINAL IN
RECESS DIAMETER2.906 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
SUBSTITUTES & CROSS-REFERENCES 1
01045014Reference 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 851-030?
851-030 is a FLANGE,PIPE.
What parts can replace 851-030?
There is 1 known substitute for 851-030: 01045014. Substitute compatibility should be verified for your specific system.
What is the NSN for 851-030?
851-030 is cataloged in the U.S. Government catalog under NSN 4730-01-244-6054. 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.