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ST4M171N4 — NUT SPACER,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST4M171N4: NUT SPACER,PLATE.

The NUT SPACER,PLATE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, nut_style: PLATE NUT SPACER, nut_length: 1.122 INCHES MAXIMUM IN, plate_width: 0.650 INCHES NOMINAL IN, plate_thickness: 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN, surface_treatment: ANODIZE AND PAINT OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-024-4148, 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
ST4M171N4
NSN: 5310-01-024-4148
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
nut_stylePLATE NUT SPACER
nut_length1.122 INCHES MAXIMUM IN
plate_width0.650 INCHES NOMINAL IN
plate_thickness0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
surface_treatmentANODIZE AND PAINT OVERALL
thru-hole_diameter0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
mounting_hole_diameter0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
nut_mounting_provisionCOUNTERSUNK HOLES
mounting_provision_locationOPPOSITE NUT PROJECTION SIDE
mounting_hole_arrangement_style2 HOLES
mounting_hole_countersink_angle100.0 DEGREES NOMINAL
NSN5310-01-024-4148
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST4M171N4 · 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
•
PLATE THICKNESS: 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
•
NUT LENGTH: 1.122 INCHES MAXIMUM IN
•
PLATE WIDTH: 0.650 INCHES NOMINAL IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MOUNTING HOLE COUNTERSINK ANGLE: 100.0 DEGREES NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4 TEMPER T81 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MOUNTING PROVISION LOCATION: OPPOSITE NUT PROJECTION SIDE
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
NUT LENGTH1.122 INCHES MAXIMUM IN
PLATE WIDTH0.650 INCHES NOMINAL IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE COUNTERSINK ANGLE100.0 DEGREES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4 TEMPER T81 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MOUNTING PROVISION LOCATIONOPPOSITE NUT PROJECTION SIDE
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST4M171N4?
ST4M171N4 is a NUT SPACER,PLATE.
What is the NSN for ST4M171N4?
ST4M171N4 is cataloged in the U.S. Government catalog under NSN 5310-01-024-4148. 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.