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492-027 — BELT,DRIVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

492-027: BELT,DRIVE.

The BELT,DRIVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: UNTHREADED EXTERNAL HOSE SECOND END, connection_style: BEADED (HOSE) SECOND END, nominal_thread_size: 0.562 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-043-0520, 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
492-027
NSN: 5310-00-043-0520
NIINs: 000430520, 013675013, 013799055
FSC: 5310 — Nuts and Washers
CAGE: 92739 — AMPEX SYSTEMS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
connection_styleBEADED (HOSE) SECOND END
nominal_thread_size0.562 INCHES FIRST END IN
media_for_which_designedFUEL SINGLE RESPONSE
thread_series_designatorUNF FIRST END
general_characteristics_item_descriptionDIRECT REPLACEMENT PART; U/O SIMPLEX 2120 MULTIPLEX SYSTEM FOR FIRE ALARM
nominal_inside_diameter_hose_accommodated0.312 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
NSN5310-00-043-0520
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 492-027 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 13 STYLE AND A GRADE
•
NUT HEIGHT: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
HARDNESS RATING80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE AND A GRADE
NUT HEIGHT0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 10
10116508Reference document
Same NSN cross-reference
Reference document — Informative reference only
5310PL1370687Reference document
Same NSN cross-reference
Reference document — Informative reference only
MS20341-416SReference document
Same NSN cross-reference
Reference document — Secondary reference
8537301Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN345-416Reference document
Same NSN cross-reference
Reference document — Secondary reference
M235650-3252Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 492-027?
492-027 is a BELT,DRIVE.
What parts can replace 492-027?
There are 10 known substitutes for 492-027: 10116508, 5310PL1370687, MS20341-416S and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 492-027?
492-027 is cataloged in the U.S. Government catalog under NSN 5310-00-043-0520. This indicates validated use in U.S. government and defense supply chains.
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