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BS4235 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BS4235: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include overall_width: 6.910 MILLIMETERS MINIMUM AND 7.000 MILLIMETERS MAXIMUM MM, overall_height: 7.964 MILLIMETERS MINIMUM AND 8.000 MILLIMETERS MAXIMUM MM, overall_length: 25.0 MILLIMETERS NOMINAL MM, style_designator: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-351-9241, 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
BS4235
NSN: 5315-01-351-9241
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: K7766 — BSI STANDARDS LIMITED (GBR)
SPECIFICATIONS
overall_width6.910 MILLIMETERS MINIMUM AND 7.000 MILLIMETERS MAXIMUM MM
overall_height7.964 MILLIMETERS MINIMUM AND 8.000 MILLIMETERS MAXIMUM MM
overall_length25.0 MILLIMETERS NOMINAL MM
style_designatorPLAIN
NSN5315-01-351-9241
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BS4235 · 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
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT7.964 MILLIMETERS MINIMUM AND 8.000 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORPLAIN
OVERALL LENGTH25.0 MILLIMETERS NOMINAL MM
OVERALL WIDTH6.910 MILLIMETERS MINIMUM AND 7.000 MILLIMETERS MAXIMUM MM
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 2
57037Reference document
Same NSN cross-reference
Reference document — Secondary reference
5701958Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 BS4235?
BS4235 is a KEY,MACHINE.
What parts can replace BS4235?
There are 2 known substitutes for BS4235: 57037, 5701958. Substitute compatibility should be verified for your specific system.
What is the NSN for BS4235?
BS4235 is cataloged in the U.S. Government catalog under NSN 5315-01-351-9241. 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.