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999412 — ABSORBER,OVERVOLTAGE

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

999412: ABSORBER,OVERVOLTAGE.

The ABSORBER,OVERVOLTAGE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, body_style: RELIEVED, overall_length: 1.375 INCHES NOMINAL IN, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, special_features: TO NAME: FIXTURE, SHADOWGRAPH, BLADE TIP RADIUS, COMPRESSOR ROTOR, width_across_flats: 0.687 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-246-2853, 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
999412
NSN: 4720-00-246-2853
FSC: 4720 — Hose and Flexible Tubing
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
body_styleRELIEVED
overall_length1.375 INCHES NOMINAL IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
special_featuresTO NAME: FIXTURE, SHADOWGRAPH, BLADE TIP RADIUS, COMPRESSOR ROTOR
width_across_flats0.687 INCHES NOMINAL IN
concentric_hole_depth0.250 INCHES NOMINAL IN
first_end_thread_class3A A
functional_descriptionUSED DURING COMPONENT MAINTENANCE/REPAIR
end_item_identificationJ-85-GE SERIES TURBOJET ENGINES
first_end_thread_length0.220 INCHES NOMINAL IN
wrenching_feature_styleHEXAGON
NSN4720-00-246-2853
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 999412 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 5
70481Reference document
Same NSN cross-reference
Reference document — Secondary reference
J3172688Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3172688Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
CH537Reference document
Same NSN cross-reference
Reference document — Secondary reference
CH481Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 999412?
999412 is a ABSORBER,OVERVOLTAGE.
What parts can replace 999412?
There are 5 known substitutes for 999412: 70481, J3172688, 3172688 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 999412?
999412 is cataloged in the U.S. Government catalog under NSN 4720-00-246-2853. 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.