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299997-101 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

299997-101: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thickness: 1.415 INCHES NOMINAL IN, neck_height: 0.758 INCHES NOMINAL IN, groove_depth: 0.108 INCHES NOMINAL IN, groove_width: 0.190 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-153-1521, 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
299997-101
NSN: 4730-01-153-1521
NIINs: 011531521, 013202905
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 18444 — OIL STATES INDUSTRIES, INC. DIV SPECIAL PRODUCTS DIV (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thickness1.415 INCHES NOMINAL IN
neck_height0.758 INCHES NOMINAL IN
groove_depth0.108 INCHES NOMINAL IN
groove_width0.190 INCHES NOMINAL IN
thread_class2B
flange_diameter8.625 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.685 INCHES NOMINAL IN
bolt_hole_quantity10
nominal_thread_size4.000 INCHES IN
bolt_circle_diameter7.125 INCHES NOMINAL IN
NSN4730-01-153-1521
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 299997-101 · 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: 8.625 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 4.000 INCHES IN
•
FLANGE SECTION STYLE: PLAIN FACE, RAISED NECK
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.685 INCHES NOMINAL IN
•
NECK HEIGHT: 0.758 INCHES NOMINAL IN
•
GROOVE DEPTH: 0.108 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER8.625 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED4.000 INCHES IN
FLANGE SECTION STYLEPLAIN FACE, RAISED NECK
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.685 INCHES NOMINAL IN
NECK HEIGHT0.758 INCHES NOMINAL IN
GROOVE DEPTH0.108 INCHES NOMINAL IN
NOMINAL THREAD SIZE4.000 INCHES IN
GROOVE PITCH DIAMETER4.685 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 299997-101?
299997-101 is a FLANGE,PIPE.
What is the NSN for 299997-101?
299997-101 is cataloged in the U.S. Government catalog under NSN 4730-01-153-1521. 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.