NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5305 › 5305-00-051-4071
Cap Hexagon Head Screw P/N B1821BH031F050N
In stock — 99 on our U.S. shelfNSN 5305-00-051-4071 5305000514071 NIIN 000514071
SECO Parts has 99 in stock of NSN 5305-00-051-4071 — Cap Hexagon Head Screw — on our own shelf in Augusta, GA: a stocking supplier, not a broker.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- SCREW,CAP,HEXAGON HEAD
- SECO description
- SCREW, HEX CAP
- Federal supply class
- FSC 5305 — Screws
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New | NE | 99 |
| Total | 99 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5305-00-051-4071 000514071 B1821BH031F050N 175-105 MS90727-29
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Thread class
- 2A
- Thread direction
- Right-Hand
- Thread length
- 0.500 in minimum
- Fastener length
- 0.469–0.500 in
- Head height
- 0.195–0.211 in
- Width between flats
- 4.890–5.000 in
- Nominal thread diameter
- Inches 0.312
- Thread quantity per inch
- 24
- Minimum tensile strength
- Pounds Per Square Inch 8700
- 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 SAE J429 GR 8
- Surface treatment
- Overall Zinc and Chromate
- Surface treatment document and classification
- Overall Assn STD Single Treatment Response Ast- B633 TY 2 SC 3
- Thread series designator
- UNF
- Nondefinitive spec/std data
- Type 2 and Style 10 and Grade 8
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
B1821BH031F050N 175-105 MS90727-29
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 | Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 99 on the shelf |
| 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 5305-00-051-4071?
NSN 5305-00-051-4071 (5305000514071) — Cap Hexagon Head Screw: SECO Parts has 99 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 5305-00-051-4071 available?
SECO Parts has 99 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5305-00-051-4071 cost?
SECO quotes NSN 5305-00-051-4071 on request, usually the same business day.
What part numbers cross-reference to NSN 5305-00-051-4071?
Part numbers that cross-reference this NSN include B1821BH031F050N, 175-105, MS90727-29. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names SCREW,CAP,HEXAGON HEAD. Same name is not the same part: check the part numbers.