MIL-SPEC · Electronic Components
NAS1351C4-28
SCREW CAP SOCKET HEAD , UNDRILLED 1/4-28X 1.75L,SS
Part NumberNAS1351C4-28
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5305-01-681-9144 (NSN)
Federal Item NameSCREW,CAP,SOCKET HEAD
MaterialSTEEL OVERALL
Nominal Thread Diameter0.243 INCHES
Head Height0.225 INCHES NOMINAL
Thread ClassUNRF-3A
Width Between Flats0.190 INCHES MAXIMUM
Thread Length1.0 INCHES NOMINAL
Distance Between Hole Centers0.188 INCHES NOMINAL
Thread Quantity Per Inch20
Internal Drive StyleDRILLED HOLES
Thread DirectionRIGHT-HAND
Federal Supply Class5305 — Screws
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is NAS1351C4-28 in stock?
Yes — NAS1351C4-28 is in our stock database. Request a quote for current pricing and lead time.
Is NAS1351C4-28 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NAS1351C4-28 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like NAS1351C4-28?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for NAS1351C4-28?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.