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51685 — RESTRICTOR,METERING ROD

✓ Government record, cited
Microconnect · NUT WASHER
PRODUCT OVERVIEW

51685: RESTRICTOR,METERING ROD.

The RESTRICTOR,METERING ROD is a Microconnect industrial component. Key specifications include general_characteristics_item_description: ALUMINUM BRONZE; 1.437 IN. DIA; 2.187 IN.

LG; EXTERNAL THREADS 1.594 IN. LG IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-085-1015, 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
51685
NSN: 5315-00-085-1015
NIINs: 000851015, 002958485, 005317140, 007186775
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionALUMINUM BRONZE; 1.437 IN. DIA; 2.187 IN. LG; EXTERNAL THREADS 1.594 IN. LG IN
NSN5315-00-085-1015
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 51685 · Microconnect ⚠ 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
•
FIRST END TAPER LENGTH: 0.018 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: DRILLED THRU CENTER
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.059 INCHES NOMINAL IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 17.5 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.0990 INCHES MINIMUM AND 0.1030 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.018 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEDRILLED THRU CENTER
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.059 INCHES NOMINAL IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE17.5 DEGREES NOMINAL
PIN OVERALL DIAMETER0.0990 INCHES MINIMUM AND 0.1030 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.750 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 51685?
51685 is a RESTRICTOR,METERING ROD manufactured by Microconnect.
What is the NSN for 51685?
51685 is cataloged in the U.S. Government catalog under NSN 5315-00-085-1015. 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.