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56-635 — PISTON,LANDING GEAR STRUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

56-635: PISTON,LANDING GEAR STRUT.

The PISTON,LANDING GEAR STRUT is a the manufacturer industrial component. Key specifications include shape: IRREGULAR, filler_cap: INCLUDED, filler_neck: INCLUDED, opening_quantity: 1 TOP, end_item_identification: 3895-016691345, part_name_assigned_by_controlling_agency: TANK FUEL, ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-077-1072, 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
56-635
NSN: 4730-00-077-1072
NIINs: 000771072, 000835910, 004152243, 016778369
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
shapeIRREGULAR
filler_capINCLUDED
filler_neckINCLUDED
opening_quantity1 TOP
end_item_identification3895-016691345
part_name_assigned_by_controlling_agencyTANK FUEL, ENGINE
NSN4730-00-077-1072
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 56-635 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,1.625 IN. OD,0.125 IN. THK,2 GROOVES 1.125 IN. DIA AND 1.188 IN. DIA IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,1.625 IN. OD,0.125 IN. THK,2 GROOVES 1.125 IN. DIA AND 1.188 IN. DIA IN
SUBSTITUTES & CROSS-REFERENCES 1
54499Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 56-635?
56-635 is a PISTON,LANDING GEAR STRUT.
What parts can replace 56-635?
There is 1 known substitute for 56-635: 54499. Substitute compatibility should be verified for your specific system.
What is the NSN for 56-635?
56-635 is cataloged in the U.S. Government catalog under NSN 4730-00-077-1072. 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.