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Technical Data Sheet
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2GL657 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SLOTTED, HEXAGON, body_width: 0.310 INCHES MAXIMUM IN, nut_height: 0.617 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN, body_height: 0.185 INCHES MAXIMUM IN, body_length: 0.896 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-329-4980, 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
2GL657
NSN: 4730-01-329-4980
FSC: 4730
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSLOTTED, HEXAGON
body_width0.310 INCHES MAXIMUM IN
nut_height0.617 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN
body_height0.185 INCHES MAXIMUM IN
body_length0.896 INCHES MAXIMUM IN
thread_class2B
overall_width3.3 INCHES NOMINAL IN
thread_seriesUNF
overall_height1.8 INCHES NOMINAL IN
overall_length8.3 INCHES NOMINAL IN
hardness_rating69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NSN4730-01-329-4980
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2GL657 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
102651Interchangeable
interchangeable cross-reference
interchangeable
4600AInterchangeable
interchangeable cross-reference
interchangeable
5310-543-5752Interchangeable
interchangeable cross-reference
interchangeable
FFN836Interchangeable
interchangeable cross-reference
interchangeable
397844Interchangeable
interchangeable cross-reference
interchangeable
7447NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2GL657?
2GL657 is a MICROCIRCUIT,DIGITAL.
What parts can replace 2GL657?
There are 10 known substitutes for 2GL657: 102651, 4600A, 5310-543-5752 and 7 more. Substitute compatibility should be verified for your specific system.
Is 2GL657 still available?
2GL657 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026