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157741-15 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

157741-15: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1045 OVERALL, overall_width: 1.000 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 4.875 INCHES NOMINAL IN, style_designator: PLAIN, key_chamfer_angle: 45.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-214-6019, 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
157741-15
NSN: 5315-01-214-6019
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 05340 — LIDGERWOOD MANUFACTURING COMPANY DBA LIDGERWOOD MANUFACTURING CO DIV LIDGERWOOD MANUFACURING CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1045 OVERALL
overall_width1.000 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
overall_length4.875 INCHES NOMINAL IN
style_designatorPLAIN
key_chamfer_angle45.0 DEGREES NOMINAL
key_chamfer_length0.062 INCHES NOMINAL IN
starting_edge_shapeCHAMFERED
NSN5315-01-214-6019
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 157741-15 · 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
•
KEY CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
STARTING EDGE SHAPE: CHAMFERED
•
STYLE DESIGNATOR: PLAIN
•
KEY CHAMFER LENGTH: 0.062 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1045 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.000 INCHES NOMINAL IN
KEY CHAMFER ANGLE45.0 DEGREES NOMINAL
STARTING EDGE SHAPECHAMFERED
STYLE DESIGNATORPLAIN
OVERALL LENGTH4.875 INCHES NOMINAL IN
OVERALL WIDTH1.000 INCHES NOMINAL IN
KEY CHAMFER LENGTH0.062 INCHES NOMINAL IN
MATERIALSTEEL COMP 1045 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 157741-15?
157741-15 is a KEY,MACHINE.
What is the NSN for 157741-15?
157741-15 is cataloged in the U.S. Government catalog under NSN 5315-01-214-6019. 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.