PartsTable
Technical Data Sheet
Download PDF

161608 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

161608: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: SEAT,CREW. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-687-6101, 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
161608
NSN: 5310-00-687-6101
NIINs: 006876101, 013372818, 015606875
FSC: 5310 — Nuts and Washers
CAGE: 28298 — SMITH AND SMITH AIRCRAFT CO (USA)
SPECIFICATIONS
end_item_identificationSEAT,CREW
NSN5310-00-687-6101
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 161608 · 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
•
THREAD SERIES: UNS
•
THREAD PITCH DIAMETERS: +3.8969 TO 3.9027 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/5,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/4,T6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/9,T6 FED SPEC 4TH MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.938 INCHES IN
•
NUT DIAMETER: 4.500 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
THREAD PITCH DIAMETERS+3.8969 TO 3.9027 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/5,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/4,T6 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-225/9,T6 FED SPEC 4TH MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.938 INCHES IN
NUT DIAMETER4.500 INCHES NOMINAL IN
DRIVE POINT DEPTH0.125 INCHES NOMINAL IN
NUT THICKNESS0.500 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
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
Ready to buy 161608?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 161608?
161608 is a CIRCUIT CARD ASSEMBLY.
What is the NSN for 161608?
161608 is cataloged in the U.S. Government catalog under NSN 5310-00-687-6101. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 161608

✓ 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.