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PartsTable / COMPONENT / SF10844 PIECE 45
SF10844 PIECE 45 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include overall_width: 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN, overall_height: 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN, overall_length: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN, style_designator: PLAIN, surface_treatment: PASSIVATE OVERALL, starting_edge_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-051-6610, 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
SF10844 PIECE 45
NSN: 5315-00-051-6610
FSC: 5315
CAGE: 59180 — CIRCOR PUMPS NORTH AMERICA LLC (USA)
SPECIFICATIONS
overall_width0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
overall_height0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
overall_length1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
style_designatorPLAIN
surface_treatmentPASSIVATE OVERALL
starting_edge_shapeSTRAIGHT
nondefinitive_spec/std_data2 TYPE AND 1 STYLE AND A GRADE
material_document_and_classification66 FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-051-6610
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SF10844 PIECE 45 · 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
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OR STEEL COMP 414 OR STEEL COMP 416 OR STEEL COMP 416SE OR STEEL COMP 420 OR STEEL COMP 430 OR STEEL COMP 430F OR STEEL COMP 430FSE OR STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OR STEEL COMP 442 OR STEEL COMP 446 OVERALL A
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
OVERALL LENGTH1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
OVERALL WIDTH0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP 403 OR STEEL COMP 405 OR STEEL COMP 410 OR STEEL COMP 414 OR STEEL COMP 416 OR STEEL COMP 416SE OR STEEL COMP 420 OR STEEL COMP 430 OR STEEL COMP 430F OR STEEL COMP 430FSE OR STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OR STEEL COMP 442 OR STEEL COMP 446 OVERALL A
MATERIAL DOCUMENT AND CLASSIFICATION66 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 STYLE AND A GRADE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
12SP84Interchangeable
interchangeable cross-reference
interchangeable
203SFInterchangeable
interchangeable cross-reference
interchangeable
R2H-97Interchangeable
interchangeable cross-reference
interchangeable
500392Interchangeable
interchangeable cross-reference
interchangeable
5306-738-2876Interchangeable
interchangeable cross-reference
interchangeable
500-396-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SF10844 PIECE 45?
SF10844 PIECE 45 is a KEY,MACHINE.
What parts can replace SF10844 PIECE 45?
There are 10 known substitutes for SF10844 PIECE 45: 12SP84, 203SF, R2H-97 and 7 more. Substitute compatibility should be verified for your specific system.
Is SF10844 PIECE 45 still available?
SF10844 PIECE 45 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026