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98-1688 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

98-1688: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: NITROGEN GAS PURITY LEVEL X-DRY MAX OPERATING PRESSURE2490 PSI. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-258-9372, 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
98-1688
NSN: 4730-01-258-9372
NIINs: 012589372, 014611719
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 65023 — EARLS SUPPLY CO (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNITROGEN COMPRESSED GAS CYLINDER; PURITY LEVEL-EXTRA DRY; (99.9 % MIN.); TANK SIZE 1A(255 CU. FT.) WITH DIMENSIONS: 9 IN. DIA. BY 51 IN. HIGH; MAX OPERATING PRESSURE-2490 PSI A
part_name_assigned_by_controlling_agencyNITROGEN GAS PURITY LEVEL X-DRY MAX OPERATING PRESSURE2490 PSI
NSN4730-01-258-9372
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 98-1688 · 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
•
CONNECTION STYLE: FLARED (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.500 INCHES SECOND END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.500 INCHES SECOND END IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER,STRAIGHT,PIPE TO TUBE
MATERIALALUMINUM ALLOY 2024 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 98-1688?
98-1688 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What is the NSN for 98-1688?
98-1688 is cataloged in the U.S. Government catalog under NSN 4730-01-258-9372. This indicates validated use in U.S. government and defense supply chains.
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