Cap Hexagon Head Screw P/N 63-CL-3335-1

Specifications

Thread class

2A

Thread direction

Right-Hand

Thread length

0.875 in minimum

Fastener length

1.250 in (nominal)

Head height

0.195–0.211 in

Width between flats

0.489–0.500 in

Nominal thread diameter

Inches 0.312

Thread quantity per inch

24

Hardness rating

Overall Rockwell C Minimum 32.0 and Rockwell C Maximum 38.0

Material

Overall Steel

Material document and classification

Overall Assn STD Single Material Response Ast- A354, Grade BD

Surface treatment

Overall Zinc and Chromate

Surface treatment document and classification

Overall Assn STD All Treatment Responses Ast- B633, Tye FE to ZN5 or FE to ZN8

Thread series designator

UNF

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

63-CL-3335-1 B1821BH031F125N C10-26066 157D4350-105 AESQ1F312A25AW9A91 MS90727-36 MS35304-36 223587

Also referenced as

186505

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock
Unit of issue	HD hundred
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered

FAQ

What is NSN 5305-00-051-4078?
NSN 5305-00-051-4078 (5305000514078) — Cap Hexagon Head Screw: SECO Parts has 350 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for cap hexagon head screw in federal supply class 5305 (Screws).

Is NSN 5305-00-051-4078 available?
SECO Parts has 350 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5305-00-051-4078 cost?
SECO quotes NSN 5305-00-051-4078 on request, usually the same business day.

What part numbers cross-reference to NSN 5305-00-051-4078?
Part numbers that cross-reference this NSN include 63-CL-3335-1, B1821BH031F125N, C10-26066, 157D4350-105, AESQ1F312A25AW9A91, MS90727-36, MS35304-36, 223587. It is also referenced by older, superseded or advisory numbers: 186505. SECO can quote against any of them.