PartsTable
Technical Data Sheet
12-1634 ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include length: 70.0 MILLIMETERS NOMINAL MM, material: STEEL CORROSION RESISTING OVERALL, special_features: STERILE,FOR USE IN VARIOUS FRACTURES OR IN CONJUNCTION TO ACCOMPANY UNIVERSAL CANNULATED SCREW SET, outside_thread_diameter: 6.5 MILLIMETERS NOMINAL MM, part_name_assigned_by_controlling_agency: SCREW BONE 6.5MM THREAD OUTSIDE DIAMETER 70MM LENGTH CRS STERILE MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-5490, 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
12-1634
NSN: 4730-00-278-5490
FSC: 4730
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
length70.0 MILLIMETERS NOMINAL MM
materialSTEEL CORROSION RESISTING OVERALL
special_featuresSTERILE,FOR USE IN VARIOUS FRACTURES OR IN CONJUNCTION TO ACCOMPANY UNIVERSAL CANNULATED SCREW SET
outside_thread_diameter6.5 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencySCREW BONE 6.5MM THREAD OUTSIDE DIAMETER 70MM LENGTH CRS STERILE MM
NSN4730-00-278-5490
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12-1634 · 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
STYLE DESIGNATOR: INVERTED NUT, TUBE, COMPRESSION
CRITICALITY CODE JUSTIFICATION: FEAT
THREAD SIZE: 5/16-24
SMALLEST INSIDE DIAMETER: 0.128 INCHES NOMINAL IN
WIDTH ACROSS FLATS: 0.313 INCHES NOMINAL IN
CASEHARDENING INDICATOR: NOT CASEHARDENED
SEAT RADIUS: 0.219 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORINVERTED NUT, TUBE, COMPRESSION
CRITICALITY CODE JUSTIFICATIONFEAT
THREAD SIZE5/16-24
OVERALL LENGTH0.500 INCHES NOMINAL IN
SMALLEST INSIDE DIAMETER0.128 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.313 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
SEAT RADIUS0.219 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
END ITEM IDENTIFICATIONSUPPORT EQUIPMENT--C-5 AIRCRAFT, T-38 AIRCRAFT, B-52 AIRCRAFT, T-37 AIRCRAFT, OV-10A AIRCRAFT; AIRCRAFT, F-16; SHOP EQUIPMENT, CONTACT MAINT, TRK-MTD, SET 3, TAM B19457; TRACTOR, FLIGHTLINE TOWING A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
WInterchangeable
interchangeable cross-reference
interchangeable
1061-0002Interchangeable
interchangeable cross-reference
interchangeable
121634Interchangeable
interchangeable cross-reference
interchangeable
20501-10Interchangeable
interchangeable cross-reference
interchangeable
358BXInterchangeable
interchangeable cross-reference
interchangeable
8-3-4INX5-32INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12-1634?
12-1634 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace 12-1634?
There are 12 known substitutes for 12-1634: W, 1061-0002, 121634 and 9 more. Substitute compatibility should be verified for your specific system.
Is 12-1634 still available?
12-1634 is currently cancelled.
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