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Technical Data Sheet
PartsTable / COMPONENT / 81540
81540 ✓ Verified by PartsTable
schleich · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The TRANSFORMER,RADIO FREQUENCY is a schleich industrial component. Key specifications include special_features: CONSISTS OF FUSELAGE, PCBASSY & AIR VEHICLE SOFT, end_item_identification: AIR VEHICLE ASSEMBLY, MODEL WASP AE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-5482, 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
81540
NSN: 5305-00-207-5482
FSC: 5305
CAGE: 89944 — ELBITAMERICA, INC. (USA)
SPECIFICATIONS
special_featuresCONSISTS OF FUSELAGE, PCBASSY & AIR VEHICLE SOFT
end_item_identificationAIR VEHICLE ASSEMBLY, MODEL WASP AE
NSN5305-00-207-5482
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 81540 · schleich ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL DRIVE STYLE: SLOT
•
POINT STYLE: BALL
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
NONSTANDARD THREAD PITCH DIAMETER: +0.0519 TO 0.0532 INCHES IN
•
POINT LENGTH: 0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.060 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLESLOT
POINT STYLEBALL
MATERIALSTEEL OVERALL
HARDNESS RATING56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNF
NONSTANDARD THREAD PITCH DIAMETER+0.0519 TO 0.0532 INCHES IN
POINT LENGTH0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.060 INCHES IN
HEAD DIAMETER0.093 INCHES NOMINAL IN
HEAD HEIGHT0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
8-540Interchangeable
interchangeable cross-reference
interchangeable
81-540Interchangeable
interchangeable cross-reference
interchangeable
081540Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81540?
81540 is a TRANSFORMER,RADIO FREQUENCY manufactured by schleich.
What parts can replace 81540?
There are 3 known substitutes for 81540: 8-540, 81-540, 081540. Substitute compatibility should be verified for your specific system.
What is the NSN for 81540?
81540 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-5482. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026