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A5042 — GEAR,HELICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A5042: GEAR,HELICAL.

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.219 INCHES NOMINAL FIRST END IN, seat_angle: 45.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-200-8105, 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
A5042
NSN: 5330-00-200-8105
NIINs: 002008105, 002936283, 003919539, 011996540
FSC: 5330 — Packing and Gasket Materials
CAGE: 95953 — HYCO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle90.0 DEGREES
leg_length1.219 INCHES NOMINAL FIRST END IN
seat_angle45.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
nominal_thread_size0.562 INCHES SECOND END IN
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN5330-00-200-8105
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A5042 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERMEDIATE RING QUANTITY: 5
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: PERIFLEX FSCM 95953 MFR REF SINGLE MATERIAL RESPONSE BOTTOM RING
•
CROSS-SECTIONAL SHAPE STYLE: ANGLE BOTTOM RING
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
HEIGHT: 0.938 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC BOTTOM RING
TECHNICAL CHARACTERISTICS
INTERMEDIATE RING QUANTITY5
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONPERIFLEX FSCM 95953 MFR REF SINGLE MATERIAL RESPONSE BOTTOM RING
MATERIAL DOCUMENT AND CLASSIFICATIONPERIFLEX FSCM 95953 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
CROSS-SECTIONAL SHAPE STYLEANGLE BOTTOM RING
INSIDE DIAMETER2.000 INCHES NOMINAL IN
HEIGHT0.938 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC BOTTOM RING
MATERIALCOTTON AND RUBBER SYNTHETIC TOP RING
MATERIALRUBBER SYNTHETIC INTERMEDIATE RING
SUBSTITUTES & CROSS-REFERENCES 5
P67474Reference document
Same NSN cross-reference
Reference document — Secondary reference
2008105Reference document
Same NSN cross-reference
Reference document — Secondary reference
AB0H20A5042Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LA1140-15Reference document
Same NSN cross-reference
Reference document — Secondary reference
H2A5042Reference 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 A5042?
A5042 is a GEAR,HELICAL.
What parts can replace A5042?
There are 5 known substitutes for A5042: P67474, 2008105, AB0H20A5042 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A5042?
A5042 is cataloged in the U.S. Government catalog under NSN 5330-00-200-8105. 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.